3. Standard deviation is ________. a mean of squared differences the square root of the variance unit-free the covariance 4. Standard deviation is useful because it ________. provides a measure of deviation from the median has no units and can therefore apply to all data ignores outliers has the same units as the underlying data

Answer:

-25,-15,-5.5,0,15,25

Step-by-step explanation:

Answer:

Step-by-step explanation:

-25, -15, -5.5, 0, 15, 25

Answer:29384763728903948763782948756473893243543

Step-by-step explanation:IDK

Answer:

Carlos will need 8 shelves to arrange all the books. He will need 4 shelves for the 32 novels and 3 shelves for the 24 autobiography books.

Step-by-step explanation:

Hope this helps

Answer:

7 shelves will be used by carlos, 3 shelves for autobiographies and 4 shelves for novels

Each shelf there would be 8 books

HOPE IT HEIPS YOU

Answer:

30

Step-by-step explanation:

JL comprises of JK & KL. So ,

JL = JK + KL

Here the length of :-

KL= 9x + 3

JL = 55

JK = 7x + 4

So putting all the values above gives ,

7x + 4 + 9x + 3 = 55

=> 16x + 7 = 55

=> 16x = 55 - 7

= 48

=> x = 48/16 = 3

Using the value of x in finding the length of KL ,

KL = 9 × 3 + 3 = 27 + 3 = 30

Answer:

0.488

Step-by-step explanation:

Use binomial probability:

P = nCr pʳ qⁿ⁻ʳ

where n is the number of trials,

r is the number of successes,

p is the probability of success,

and q is the probability of failure (1−p).

Here, n = 3 and p = 0.2.

The complement of at least 1 is at most 0.

P(r ≥ 1) = 1 − P(r = 0)

P(r ≥ 1) = 1 − ₃C₀ (0.2)⁰ (0.8)³⁻⁰

P(r ≥ 1) = 1 − (0.8)³

P(r ≥ 1) = 0.488

Answer:

x = (-5,10)

Step-by-step explanation:

Answer:

-6

Step-by-step explanation:

Answer:

The answer is 2^97

Step-by-step explanation:

I calculated it I am sure it is correct

Have a wonderful rest of your day,

Katharine Chavez

Answer:

[tex](-4, -1)[/tex]

Step-by-step explanation:

[tex]6x-y=-23[/tex]

Add y to both sides:

[tex]6x-y+y=-23+y\\6x=-23+y[/tex]

Divide both sides by 6:

[tex]\frac{6x}{6}=-\frac{23}{6}+\frac{y}{6}\\x=\frac{-23+y}{6}[/tex]

Substitute this into the second equation given:

[tex]2*\frac{-23+y}{6}+5y=-13[/tex]

[tex]\frac{-23+16y}{3}=-13[/tex]

Multiply both sides by 3:

[tex]-23+16y=-39[/tex]

Add 23 to both sides:

[tex]-23+16y+23=-39+23\\16y=-16[/tex]

Divide both sides by 16:

[tex]\frac{16y}{16}=\frac{-16}{16}\\y=-1[/tex]

We know that [tex]x=\frac{-23+y}{6}[/tex].

Thus, [tex]x=\frac{-23-1}{6}[/tex]

[tex]x=-4[/tex]

[tex](x, y) = (-4, -1)[/tex]

Answer:

(-4,-1)

Step-by-step explanation:

Answer:

1-x/7

Write x/7 as a fraction.

Answer:

It's 0.61

Step-by-step explanation:

I graphed the equation and got 0.61 on the x axis when the y value was 1.24

The missing x-coordinate is 9.5. The correct answer is option D.

A function in mathematics set up a relationship between the dependent variable and independent variable. on changing the value of the independent variable the value of the dependent variable also changes.

The given function [tex]y = 2 -\sqrt{x+1}[/tex] and the point are ( x, -1.24 ). Put y = -1.24 in the given equation to get the value of x.

[tex]y = 2 -\sqrt{x+1}[/tex]

[tex]-1.24 = 2 - \sqrt{x+1}\\-1.24 - 2 = \sqrt{x+1}\\-3.24 = \sqrt{x+1}[/tex]

Squaring on both sides.

[tex](-3.24)^2 = (\sqrt{x+1})^2[/tex]

10.5 = x + 1

x = 9.5

Hence, the correct option is D.

To know more about function follow

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Answer:

Step-by-step explanation:

Rate X Time = distance

Therefore:

    r (rate) X 5 (hours) = 600 (distance)

    r = 600/5

    r = 120 miles per hour

    The rate of speed of the jet is 120 mph.

Then, to find out the distance flown in 13 hours:

    120 (rate) X 13 (time) = d (distance)

    120 X 13 = d

    1560 = d

    The distance flown in 13 hours is 1560 miles.

Answer:

Order of operations

Step-by-step explanation:

In order of operations, multiplication and division go first of the things in this equation (remember PEMDAS?), after that it's left-right. So the first division left-right is 27/9

Answer:

3/50

Step-by-step explanation:

Hey! I've had the same quiz earlier and these answers below are correct. Hope this helps you out and have a great day :)

We have proved that m∠ABC is an obtuse angle.

m∠ABC = m∠ABD + m∠DBC

100° = 60° + 40°

Given,

m∠ABD = 60°

m∠DBC = 40°

We need to prove that m∠ABC is an obtuse angle.

The angles greater than 90 degrees but less than 180 degrees are called obtuse angles.

We have,

From the figure.

m∠ABD = 60°

m∠DBC = 40°

We see that

m∠ABC = m∠ABD + m∠DBC

m∠ABC = 60° + 40°

m∠ABC = 100°

m∠ABC is greater than 90 degrees and less than 180 degrees so,

m∠ABC is an obtuse angle.

Thus we have proved that m∠ABC is an obtuse angle.

Learn more about obtuse angles here:

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Answer:

r = 0.9

Step-by-step explanation:

Correlation is denoted by r. r² is usually used to measure variation along the line as a fraction of the total variation.

We are told class attendance explained 81% of the variation in grade index among the students. Thus, for this regression, the variation is;

r² = 81%

Or r² = 0.81

Thus, the numerical value of the correlation r would be;

r = √0.81

r = 0.9

Answer:

b and c

Step-by-step explanation: If you subtract 23 from 23/ 23-23=0 and 23-(-23)= 0. Hope this helps!

James can do 23 to turn it into 0 by adding a negative number 23 or subtracting a number 23. Then the correct options are B and C.

The analysis of mathematical representations is algebra, and the handling of those symbols is logic.

PEMDAS rule means for the Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This rule is used to solve the equation in a proper and correct manner.

A class is playing a game where they add or subtract numbers to come up with another target number.

James can do 23 to turn it into 0 by adding a negative number 23 or subtracting a number 23. Then the correct options are B and C.

⇒ 23 + (-23)

⇒ 23 - 23

⇒ 0

⇒ 23 - 23

⇒ 0

More about the Algebra link is given below.

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B is the correct answer

Answer:28

Step-by-step explanation:

Answer:

y1

5

x)(y1)

6

=

1

30

xy2

Answer:

0.43, 4.7, 5, 6

Step-by-step explanation:

[tex]0.43<4.7<5<6[/tex]

Answer:

-2 (6x - y) = -12x + 2y

Step-by-step explanation:

By using the distributive property, you start by multiplying -2 and 6x which gets you -12x. You then multiply -2 and -y (in other words -y = -1y) so, -2* -y would get you 2 as a negative multiplied by a negative is a positive. So, adding them together would get your final answer: -2 (6x - y) = -12x + 2y

Answer:

Number:                  Frequency:

    5                                 4

    10                                2

    12                                 1

    15                                 4

    25                                4

     30                                1

     35                                1

     40                                1

      45                                1

      55                                1

Step-by-step explanation:

You make a T-Chart. The left side is the numbers you have and the right side is the frequency of the number. (how many times you see that number)

Answer:

4/5 = 0,8

4 | 5

40 0,8

40

Step-by-step explanation:

Answer: the tenths place

Step-by-step explanation:

Answer:

Step-by-step explanation:

5x - 16 = 4x + 6

x - 16 = 6

x = 22

5(22) - 16 = 110 - 16 = 94

4(22) + 6 = 88 + 6 = 94

Answer:

A

Step-by-step explanation:

its multiplying

Answer:

Jennie earned $300

Step-by-step explanation:

We are already given the amount of time that she works and the rate. We just need to multiply the time by the corresponding rate. She worked 22 regular hours and gets $10 for each one. That means she earned $220 just from the regular hours.

Now we need to add the overtime hours. She worked 4 hours and made $20 for each one. In total, that's $80.

220+80=300

Jennie earned $300