The volume of the cylinder with the same radius and double the height is 300π cubic inches.
Given that the cylinder has a radius of 5 inches and a height of 6 inches, we can find its volume as:
V = π(5 in)²(6 in)
V = 150π cubic inches
Therefore, the volume of the cylinder is 150π cubic inches.
If we double the height of the cylinder, the new height becomes 2(6 in) = 12 in.
The radius remains the same at 5 inches.
The volume of the new cylinder can be found using the same formula:
V = πr²h
V = π(5 in)²(12 in)
V = 300π cubic inches
Therefore, the volume of the cylinder with the same radius and double the height is 300π cubic inches.
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What happens if you try to use l' Hospital's Rule to find the limit? lim_x rightarrow infinity x/Squareroot x^2 + 3 You cannot apply l' Hospital's Rule because the function is not continuous. You cannot apply l'Hospital's Rule because the denominator equals zero for some value x = a. You cannot apply l'Hospital's Rule because the numerator equals zero for some value x = a You cannot apply l'Hospital's Rule because the function is not differentiable. Repeated applications of l'Hospital's Rule result in the original limit or the limit of the reciprocal of the function Evaluate the limit using another method.
The limit lim(x→∞) x/√(x^2 + 3) is 1, and there is no need to apply L'Hospital's Rule in this case.
When trying to use L'Hospital's Rule to find the limit lim(x→∞) x/√(x^2 + 3), it is important to note that L'Hospital's Rule can only be applied if the function is continuous and differentiable. In this case, the function is continuous and differentiable, but applying L'Hospital's Rule is not necessary as the limit can be evaluated using another method.
First, let's rewrite the given function by dividing both the numerator and the denominator by x:
lim(x→∞) (x/x) / (√(x^2 + 3)/x) = lim(x→∞) 1 / √(1 + 3/x^2)
As x approaches infinity, the term 3/x^2 approaches 0, so the limit becomes:
lim(x→∞) 1 / √(1 + 0) = 1 / √(1) = 1
Therefore, the limit lim(x→∞) x/√(x^2 + 3) is 1, and there is no need to apply L'Hospital's Rule in this case.
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Find the sector area for the following
[tex]\textit{area of a sector of a circle}\\\\ A=\cfrac{\theta r^2}{2} ~~ \begin{cases} r=radius\\ \theta =\stackrel{radians}{angle}\\[-0.5em] \hrulefill\\ r=6\\ \theta = \frac{2\pi }{3} \end{cases}\implies A=\cfrac{~~ \frac{2\pi }{3 }6^2 ~~}{2}\implies A=12\pi \stackrel{ using~\pi =3.14 }{\implies A=37.68}[/tex]
Which of the following is an assumption for computing any type of independent sample t test?
a. Data in the population being sampled are normally distributed.
b. Data were obtained from a sample that was selected using a random sampling procedure.
c. The probabilities of each measured outcome in a study are independent.
d. all of the above
2. A researcher selects a sample of 16 women and asks them to rate how important a sense of humor is in someone they want a long-term relationship with. She records scores averaging 1.6±0.8 (M±SD) on a rating scale from -3 (not important at all) to +3 (very important). Assuming that an average score of 0 is the null hypothesis, test whether or not women find this trait important at a .05 level of significance.
a. Women found this trait to be important, and this result was significant, t(16) = 8.00, p < .05.
b. Women found this trait to be important, and this result was significant, t(15) = 8.00, p < .05.
c. Women did not find this trait to be important, p > .05.
d. There is not enough information to answer this question.
3. A researcher conducts two t tests. Test 1 is a one-tailed test with a smaller sample size at a .05 level of significance. Test 2 is a one-tailed test with a larger sample size at a .05 level of significance. What do you know about the critical values for each test?
a. Test 1 is associated with smaller critical values.
b. Test 2 is associated with smaller critical values.
c. Each test is associated with the same critical values.
d. It depends; there is not enough information to answer this question.
There are different ways to approach this question, but one possible method is to conduct a one-sample t-test using the formula t = (M - μ) / (s / sqrt(n)), where M is the sample mean, μ is the population mean (null hypothesis), s is the sample standard deviation, and n is the sample size. With the given information, the t-value is (1.6 - 0) / (0.8 / sqrt(16)) = 8.
The degrees of freedom is n - 1 = 15. Using a t-table or a calculator, the p-value for a one-tailed test with 15 degrees of freedom and a t-value of 8 is much smaller than .05 (e.g., < .0005). Therefore, we can reject the null hypothesis and conclude that women find a sense of humor to be important in a long-term relationship at a .05 level of significance. The correct answer is b.
Test 2 is associated with smaller critical values. The critical values for a t-test depend on the level of significance, the degrees of freedom, and whether the test is one-tailed or two-tailed. In general, a smaller level of significance or a larger sample size leads to smaller critical values (i.e., it becomes easier to reject the null hypothesis). Since Test 2 has a larger sample size than Test 1, it is more likely to detect a significant effect (i.e., have a smaller Type II error rate), and therefore requires smaller critical values to achieve a .05 level of significance. The correct answer is b.
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WORTH 20 POINTS
PLS HELP ME AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
A ratio is a relationship in which for every x units of one quantity there are y units of another quantity. Ratios are considered to be equivalent if they express the same x/y. A ratio compares 2 like or unlike quantities by division. Ratios can be shown visually using a graph or a ratio table.
write an equation of a ellipse in standard form with center at origin, foci ( - 1, 0) and co-vertices (0, -4)
the equation of the ellipse in standard form with the given properties is:
x²/16 + y²/16 = 1
What is ellipse?
An ellipse is a closed curve that is symmetric about its center. It is a type of conic section, which is formed by intersecting a cone with a plane. An ellipse is defined as the set of all points in a plane for which the sum of the distances to two fixed points (called the foci) is constant.
To write the equation of an ellipse in standard form with the center at the origin, foci at (-1, 0), and co-vertices at (0, -4), we can use the following information:
Center: (h, k) = (0, 0) (since the center is at the origin)
Foci: (c, 0) = (-1, 0)
Co-vertices: (0, b) = (0, -4)
Let's denote "a" as the distance from the center to the vertices and "c" as the distance from the center to the foci.
From the given information, we can deduce that:
a = 4 (since the distance from the center to the co-vertices is 4)
c = 1 (since the distance from the center to the foci is 1)
The standard form equation for an ellipse with a horizontal major axis and center at the origin is:
x²/a² + y²/b² = 1
Substituting the values we found:
x²/4² + y²/(-4)² = 1
Simplifying the equation:
x²/16 + y²/16 = 1
Thus, the equation of the ellipse in standard form with the given properties is:
x²/16 + y²/16 = 1
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to determine if there is a relationship between skin color and beauty judgements, one researcher conducted a study with a random sample of 300 black women. they were given three pictures of super models with varying skin tones: dark (nyakim gatwech), medium (adriana lima), and light (natalia vodianova). each woman was asked to rank them from most to least beautiful. here are the results: dark skin medium skin light skin 1st 55 45 35 2nd 10 45 50 3rd 40 15 5 question 4 of 7 question 4this is not a form; we suggest that you use the browse mode and read all parts of the question carefully. what is the expected count of women who ranked the dark skinned model as being the most beautiful (ranked as
The expected count of women who ranked the dark-skinned model as the most beautiful is 100.
Since there are three models, we would expect 100/3 = 33.33% of the women to have ranked each model as the most beautiful if there were no relationship between skin color and beauty judgements. Thus, we can calculate the expected count of women who ranked the dark-skinned model as the most beautiful as follows:
Expected count = 300 * 33.33% = 100
Therefore, we can expect that 100 women out of the 300 sampled would have ranked the dark-skinned model as the most beautiful if there were no relationship between skin color and beauty judgements. The observed count of 55 women who ranked the dark-skinned model as the most beautiful is higher than the expected count, which suggests that there may be a relationship between skin color and beauty judgements. However, further statistical tests would be needed to confirm this.
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your ceiling is 250 centimeters high, you want the tree to have 35 centimeters of space with the ceiling. how tall must the tree be? (in centimeters)
To calculate the height of the tree that would leave a 35 cm space from a 250 cm tall ceiling, subtract the desired space from the total height. Hence, the tree should be 215 centimeters tall.
Explanation:The calculation involves understanding and using the concepts of height and ceiling space. When you want a tree to leave a certain amount of space from the ceiling, you have to subtract that desired space from the total height of the room. So, if your ceiling is 250 centimeters high and you desire a space of 35 centimeters to be left, the tree's height should be calculated as follows:
Subtract the desired space from the total height: 250 cm - 35 cm The result would then give the height of the tree: 215 cm
So, in this scenario, the tree must be 215 centimeters tall to fit perfectly under your ceiling with 35 centimeters of space left.
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A bag of candy contains 3 blue candies, 4 green candies, and 6 red candies. If you draw two candies, one at a time and without replacement, what is the probability that you will draw a green candy and a blue candy?
The probability of drawing a green candy and a blue candy from the bag, one at a time and without replacement, is approximately 0.077 or 7.7%.
To calculate the probability of drawing a green candy and a blue candy from the bag without replacement, we need to determine the total number of candy combinations and the favorable combinations (green and blue candies).
The total number of candies in the bag is 3 blue + 4 green + 6 red = 13 candies.
When drawing the first candy, there are 13 candies to choose from. If a green candy is drawn, there are 4 green candies remaining out of the 12 candies left in the bag. Now, if a blue candy is drawn as the second candy, there are 3 blue candies remaining out of the 11 candies left in the bag.
The probability of drawing a green candy and a blue candy can be calculated as follows:
Probability = (Number of favorable combinations) / (Total number of candy combinations)
Number of favorable combinations = 4 (number of green candies) * 3 (number of blue candies) = 12
Total number of candy combinations = 13 (total candies) * 12 (remaining candies) = 156
Probability = 12 / 156 ≈ 0.077 or 7.7% (rounded to the nearest tenth)
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p(x) = 2x^3 -5x^2 + 7x - 3 find p(2) , p(0), p(-1), p(-2)
POLYNOMIAL CLASS 9 QUESTION
PLS, I NEED ANSWER FAST
The value of p(2) = 7, p(0) = -3 , p(-1) = -17 and p(-2) = -53 when polynomial is p(x) = 2x³ - 5x² + 7x - 3 with one variable.
Given that,
The polynomial is p(x) = 2x³ - 5x² + 7x - 3
We have to find the value of p(2), p(0), p(-1) and p(-2).
We know that,
Take polynomial,
p(x) = 2x³ - 5x² + 7x - 3
Now, to find p(2) take x = 2 in polynomial
By substituting,
p(2) = 2(2)³ - 5(2)² + 7(2) - 3
p(2) = 16 - 20 + 14 - 3
p(2) = 30 - 23
p(2) = 7
Now, to find p(0) take x = 0 in polynomial
p(0) = 2(0)³ - 5(0)² + 7(0) - 3 [multiplication]
p(0) = 0 - 0 + 0 - 3
p(0) = -3
Now, to find p(-1) take x = -1 in polynomial
p(-1) = 2(-1)³ - 5(-1)² + 7(-1) - 3
p(-1) = -2 - 5 - 7 - 3 [subtraction]
p(-1) = -17
Now, to find p(-2) take x = -2 in polynomial
p(-2) = 2(-2)³ - 5(-2)² + 7(-2) - 3
p(-2) = -16 - 20 - 14 - 3
p(-2) = -53
Therefore, The value of p(2) = 7, p(0) = -3 , p(-1) = -17 and p(-2) = -53.
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what do we have to add totge expression 4x^2+20x to complete the square?
We should add 25 to make it a perfect square.
Given is an expression 4x²+20x, we need to add a term to make it a perfect square,
So,
4x²+20x
= (2x)² + 2 × 2 × 5 × x
Add and subtract 25.
= (2x)² + 2 × 2 × 5 × x + 25 - 25
= (2x)² + 2 × 2 × 5 × x + 5² - 25
= (2x+5)² - 25
Hence we should add 25 to make it a perfect square.
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Approximate the area under the function between a and b using a left-hand sum with the given number of intervals. f(x) = x² − x a = 0 b=3 3 Intervals
Use the interactive graph below to sketch a graph of y = 310g, (-X) - 9.
The sketch of the graph of the logarithm function is added s an attachment
Sketching the graph of the logarithm functionFrom the question, we have the following parameters that can be used in our computation:
y = 3log₂(-x) - 9
The above equations is an illustration of a logarithm function that has been transformed using the following
Reflected across the y-axisVertically stretched by a factor of 3Translated down by 9 unitsNext, we plot the graph using a graphing tool
The graph of the logarithm function is added as an attachment
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which inference method can be used to test for a difference between the average iq scores of identical twins raised by birth parents and in a foster home? circle the correct choice.
The appropriate inference method to test for a difference between the average IQ scores of identical twins raised by birth parents and in a foster home is paired t-test.
A paired t-test is used when comparing two sets of observations that are paired or matched in some way, such as in the case of identical twins. In this scenario, the twins are matched based on their genetic makeup, and their IQ scores are compared based on their different upbringing environments (birth parents vs. foster home). The paired t-test allows us to analyze the difference between the paired observations (IQ scores) and determine if there is a statistically significant difference between the two groups.
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can you help me with this math
mrs. coleman, a tailor, received 25 meters of fabric as a gift. she used 3 meters of fabric to make herself a long skirt. she plans to turn the rest of the fabric into smaller girls' dresses that she can sell. if she needs 110 centimeters of fabric for every dress, how many dresses can she make?
Mrs. Coleman can make 20 dresses from the remaining fabric.
To determine how many dresses Mrs. Coleman can make from the remaining fabric, we need to calculate the available fabric after she used 3 meters for her skirt and convert it to centimeters.
Given:
Total fabric received = 25 meters
Fabric used for Mrs. Coleman's skirt = 3 meters
Remaining fabric = Total fabric received - Fabric used for the skirt
Remaining fabric = 25 meters - 3 meters
Remaining fabric = 22 meters
Now, we need to convert the remaining fabric from meters to centimeters:
1 meter = 100 centimeters
Remaining fabric in centimeters = Remaining fabric in meters * 100 centimeters/meter
Remaining fabric in centimeters = 22 meters * 100 centimeters/meter
Remaining fabric in centimeters = 2200 centimeters
To calculate the number of dresses Mrs. Coleman can make, we divide the remaining fabric in centimeters by the fabric needed per dress:
Number of dresses = Remaining fabric in centimeters / Fabric needed per dress
Number of dresses = 2200 centimeters / 110 centimeters per dress
Number of dresses = 20 dresses
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Find the value of sides RS
Answer:
RS = 15 units
Step-by-step explanation:
Given:
RT = 9
TS = 12
To find: Length of RS
Proof:
In right triangle RTS,
[tex]RT^{2} + TS^{2} = RS^{2}[/tex]
[tex]9^{2} + 12^{2} = RS^{2}[/tex]
[tex]81 + 144 = RS^{2}[/tex]
[tex]225 = RS^{2}[/tex]
[tex]\sqrt{225} = RS[/tex]
15 = RS
∴ The length of RS is 15 units.
A data flow diagram (DFD) does not provide any information about process timing. T/F
Answer:
Step-by-step explanation:
True.
A Data Flow Diagram (DFD) is a graphical representation of a system or a process that shows how data flows through different components of the system. It provides a visual representation of the system's inputs, processes, and outputs.
While a DFD can provide information on the data that flows between the different components of a system, it does not provide any information about the timing or sequence of those processes. A DFD is a static diagram that only depicts the flow of data in a system and does not provide any indication of when or how frequently processes occur
Jodi and gerry buy a total of 23 videos games in one year. Jodi buys 4 less that twice the number of games jerry buys. Part a
write a system of equations that describes this situation
The system of the equations that describes the situation can be represented as: j + g = 23, j - 2g = - 4
Representing word problems as a system of equation.A system of equation is a linear algebraic expression that are represented in variables with their coefficients. A system of equation usually comprises of two equation and these equation are attached to their individual constant.
This implies that, we can have a system of equations where x and y are the variables and the constant can be any number. From the given information, let's assume that the variable for Jodi is "j" and Jerry is "g", then:
j + g = 23
If Jodi buys 4 less than twice number of Jerry's games, then we can have:
j = 2g - 4
j - 2g = - 4
Therefore, the system of the equations can be represented as:
j + g = 23 ------- (1)
j - 2g = - 4 --------- (2)
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The function f(x) = x was transformed to form g(x) = f(x) - 23.
Which statement is true about the graphs of f and g?
A. The graphs of f and g are not parallel, and the graph of f is translated 23 units up to create the graph of g.
B. The graphs of f and g are not parallel, and the graph of f is translated 23 units down to create the graph of g.
C. The graphs of f and g are parallel, and the graph of fis translated 23 units up to create the graph of g.
D. The graphs of fand g are parallel, and the graph of f is translated 23 units down to create the graph of g.
Matthew signed up for a streaming music service that costs $14 per month. The service allows Matthew to listen to unlimited music, but if he wants to download songs for offline listening, the service charges $1.50 per song. How much total money would Matthew have to pay in a month in which he downloaded 15 songs? How much would he have to pay if he downloaded s songs?
If x = 5, then which equation is NOT true?
-2x ≤ 12
x - 2>7
2x < 12
x-7<2
Answer:
x - 2 > 7
Step-by-step explanation:
Substitute the value 5 for x.
x = 5
-2x ≤ 12
-2(5) ≤ 12
-10 ≤ 12 True
-10 is less than or equal to 12
x - 2 > 7
5 - 2 > 7
3 > 7 Not true
3 is greater than 7
2x < 12
2(5) < 12
10 < 12 True
10 is less than 12
x - 7 < 2
5 - 7 < 2
-2 < 2 True
-2 is less than 2
Which measure of central tendency is used to determine the average annual percent
increase?
A) Mode
B) Arithmetic mean
C) Median
D) Weighted mean
E) Geometric mean
The geometric mean is used to determine the average annual percent increase, as it accurately accounts for compounding growth over multiple periods. The correct option is E.
The measure of central tendency that is typically used to determine the average annual percent increase is the arithmetic mean. This measure takes the sum of all the values and divides it by the total number of values.
It is important to note that other measures, such as the geometric mean, can also be used in certain situations. But for most cases, the arithmetic mean is the go-to measure for determining the average annual percent increase.
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the lifetime of a certain type of battery can be approximated by a normal distribution. the list gives the number of hours of battery life of 10 batteries selected at random. find the mean and standard deviation of the data set. then sketch a normal curve to represent the distribution. 24, 24, 32, 14, 22, 34, 20, 26, 17, 29
Answer: mean= 24.2 and the standard deviation is 6.0 :)
Step-by-step explanation: this is because when you solve for the equation the result for the standard deviation is 6.3 but if you round the number, it becomes 6.0, being the standard deviation.
Wyatt’s math teacher wrote the following data set on the board.
10, 2.8, 6.5, 21.6, 8.2, 9.3, 4, 2.8
What is the range of the data?
Answer:
18.8
Step-by-step explanation:
To find the range of a data set, you subtract the smallest value from the largest value.
In this case, the smallest value is 2.8 and the largest value is 21.6.
Range = largest value - smallest value = 21.6 - 2.8 = 18.8
Therefore, the range of the data set is 18.8.
Help please step by step
Tom does have enough fertilizer to cover the triangular area, as the triangular area is of 179.6 m², and he has 300 m² of fertilizer.
How to obtain the area of a triangle?We are given the three sides of the triangle, hence the first step in obtaining the area is obtaining the semi-perimeter, which is half the perimeter, hence:
s = (26 + 20 + 18)/2
s = 32 m.
The area of the triangle is then obtained as follows:
[tex]A = \sqrt{s(s - a)(s - b)(s - c)}[/tex]
[tex]A = \sqrt{32(32 - 26)(32 - 20)(32 - 18)}[/tex]
A = 179.6 m².
Hence Tom does have enough fertilizer to cover the triangular area, as the triangular area is of 179.6 m², and he has 300 m² of fertilizer.
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helpppppppppp pleaseeeeee
The angles in the trapezoid are as follows:
m∠D = 21°
m∠A = 159°
m∠B = 159°
How to find the angle of an isosceles trapezoid?Isosceles trapezoid is a trapezoid in which the top and bottom sides are parallel, while the remaining two non-parallel sides have the same length.
Adjacent angles of the isosceles trapezoid are congruent.
Hence,
m∠D = 21 degrees
Any lower base angles is supplementary to any upper base angles.
m∠A = 180 - 21 = 159 degrees
m∠B = 180 - 21 = 159 degrees
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use quantifiers and logical connectives to express the factthat every linear polynomial (that is, polynomial of degree 1) with real coefficients and where the coefficient ofx is nonzero, has exactly one real root.
The expression states that for every linear polynomial p with real coefficients and a nonzero coefficient of x, there is exactly one real root r.
For all linear polynomials with real coefficients and a nonzero coefficient of x, there exists exactly one real root. This can be expressed using the universal quantifier "for all" and the existential quantifier "there exists", connected by the logical connective "and". Additionally, the statement "exactly one real root" can be expressed using the quantifier "there exists" and the logical connective "and".
Using quantifiers and logical connectives, we can express the given fact as follows:
∀p ∃!r ((isLinearPolynomial(p) ∧ hasRealCoefficients(p) ∧ coefficientOfX(p) ≠ 0) → hasRealRoot(p, r))
Explanation:
- ∀p: For every polynomial p
- ∃!r: There exists exactly one real root r
- isLinearPolynomial(p): p is a linear polynomial (degree 1)
- hasRealCoefficients(p): p has real coefficients
- coefficientOfX(p) ≠ 0: The coefficient of x in p is nonzero
- hasRealRoot(p, r): p has a real root r
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A rectangle is 2 0 meter long and 2 3 meters wide. What is the area of the rectangle? Enter your answer in the box below.
Answer:
The answer is 460m²
Step-by-step explanation:
Area of rectangle =Length × Width
A=20×23
A=460m²
Answer:460
Step-by-step explanation: 20
x 23
_____
60
+400
exhibit 4the distribution of human pregnancy lengths can be described by a normal model with a mean of 39 weeks and a standard deviation of 2 weeks. what percentage of pregnancies last shorter than 38 weeks? select one:a.69.15%b.93.31%c.30.85%d.6.68%
The percentage of pregnancies last shorter than 38 weeks is (c) 30.85%.
We can use the normal distribution formula to calculate the percentage of pregnancies that last shorter than 38 weeks:
z = (x - μ) / σ
where z is the z-score, x is the value we are interested in (in this case, x = 38), μ is the mean (μ = 39), and σ is the standard deviation (σ = 2).
Substituting the values, we get:
z = (38 - 39) / 2 = -0.5
We can now use a standard normal distribution table or a calculator to find the percentage of values that fall below the z-score of -0.5. The area to the left of -0.5 is approximately 30.85%.
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The number of views of a video on the internet is shown in the table below as a function of the time since the video was posted
The linear regression equation that best fits the data set is y = 126x + 462.
How to explain the regressionTo find the linear regression equation, we can use the following steps:
Calculate the slope and the y-intercept..
In this case, we have the following values:
y₂ = 4,920
y₁ = 650
x₂= 20
x₁ = 2
Substituting these values into the formula, we get the following:
m = (4,920 - 650)/(20 - 2) = 2,270/18 = 126.11
The y-intercept is calculated using the following formula:
b = y - mx
In this case, we can use the point (2, 650) because it is the first point in the table. Substituting these values into the formula, we get the following:
b = 650 - 126.11(2) = 461.89
The linear regression equation that best fits the data set is y = 126.11x + 461.89. Round each parameter to the nearest whole number, we get y = 126x + 462.
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The number of views of a video on the internet is shown in the table below as a function of the time since the video was posted (in hours).
Number of hours, x
Number of views, y
2
650
5
1,280
8 12
2,140
3,120
17
4,050
20
4,920
Find a linear regression equation, in the form y=ax+b, that best fits this data set. Round each parameter to the nearest whole number.
