How to find correlation coefficient with standard deviation.

Answers

Answer 1

Answer:

Another way to calculate the correlation coefficient (r) is to multiply the slope of the regression line by the standard deviation of X and then divide by the standard deviation of Y.


Related Questions

Carey creates the table below to help him determine 75% of 36.


75% of 36
25%
25%
25%
25%
One-fourth
One-fourth
One-fourth
One-fourth
9
9
9
9

He writes the expression (three-fourths) (27). Which change in Carey’s expression will lead him to the correct answer?

Answers

Answer:

27 is the answer

Step-by-step explanation:

36/.75=27

On Monday, your bank account balance was -$12.71. Because you didn't realize this, you wrote a check for $30.96 for groceries. The new balance in the checking account dollars ​

Answers

Answer:

-$43.67

Step-by-step explanation:

your balance was negative $12.71 then you still took $30.96 for the groceries so the equation suppose be

-12.71 -30.96

it have same sign so you add them, after you add them you will get $43.67 but cause it was negative so your bank account's new balance was -$43.67.

workout the perimeter of this shape 3cm 5cm 2cm 6cm

Answers

Answer:

Perimeter is 16 cm

Step-by-step explanation:

3+5+2+6=16

im assuming the amounts given are the side lengths

16 you add them all together because there all the same units

Last year, 120 students were sick at school. This year, 20% fewer students are sick. How many students are sick this year?​

Answers

Answer:

100

Step-by-step explanation:

it takes minutes to do 7 math problems how long does it take to do 20 math problems

Answers

Answer:

can you please explain that a little more

why do u get to determain how many daily limits i can have u encourge alot of a ton people to buy you're vip for over priced prices it dum and so is youre app

Answers

Looooollllllllllll.

(Will give BRAINLIST to best answer)
Angle QRS is a straight line. The measure of angle 2 is 60 degrees more than the measure of angle 1

Answers

Answer:

Angle 2 = 120 degrees, Angle 1 = 60 degrees

Step-by-step explanation:

Since a straight angle is 180 degrees, you have to add up the 2 angles to 180.

x+x+60=180

2x+60=180

2x=120

x=60

Angle 1 = 60

Angle 2 = 60+60=120

A rock has a mass of 126 grams and a density
of 1.8 grams/cm.
Work out the volume of the rock.


Answers

Answer: 70 grams^3

Step-by-step explanation: volume = mass/density                                             volume = 126/1.8                                                                                                       volume = 70 grams^3

The value of the volume of the rock will be;

⇒ Volume = 70 cm³

What is Division method?

Division method is used to distributing a group of things into equal parts. Division is just opposite of multiplications. For example, dividing 20 by 2 means splitting 20 into 2 equal groups of 10.

Given that;

The mass of rock = 126 grams

The density of rock = 1.8 grams/cm

Now,

Since, We know that;

⇒ Volume = Mass / Density

Here, The mass of rock = 126 grams

The density of rock = 1.8 grams/cm³

Substitute all the values we get;

⇒ Volume = Mass / Density

⇒ Volume = 126 / 1.8

⇒ Volume = 70 cm³

Thus, The value of the volume of the rock will be;

⇒ Volume = 70 cm³

Learn more about the divide visit:

https://brainly.com/question/315081

#SPJ2

Marguerite is selling space in an advertisement book for a community fund-raising event. Each (1/5) page in the book costs $13.5. What is the cost for (3/5) page.

Answers

Answer:

$40.5.

Step-by-step explanation:

if 1/5 of the book costs $13.5. then to find 3/5 you just have to times the answer by 3.

A countertop is 13 feet long and 2 feet wide.



What is the area of the countertop in square meters? Use the conversion 1 foot = 0.305 meter. Round your final answer to 2 decimal places.

Answers

Answer:

A = 2.42 sq. meters

Step-by-step explanation:

13 feet = 13 × 0.305 = 3.965 meter

2 feet = 2 × 0.305 = 0.61 meter

A = lw

A = (3.965) × (0.61)

A = 2.41865 sq. meters

A = 2.42 sq. meters

What are the places in decimals called.

Answers

Answer: the tenths place

Step-by-step explanation:

If Susan can type 72 words per minute, how long will it take her to type her 360 word essay?

Answers

34 words in 1 minute

# words in 5.5 minutes

Cross multiply.

34/1=#/5.5

1(#)= 34(5.5)

#= 187

Answer:

5 minutes

Step-by-step explanation:

72/1 = 360/5

1 Six rain gauges are spread throughout a city. The mean height of water in these gauges is 1.8 centimeters after a rainy day. Which statement must be true?
A All of the rain gauges would have 1.8 centimeters of water, if distributed evenly.
B At least one of the rain gauges has exactly 1.8 centimeters of water.
C All of the rain gauges have 1.8 centimeters of water.​

Answers

Answer:

I think it's B.

Step-by-step explanation:

:)

Kate, Alexia, and Trina just completed the 400-meter dash at the track meet. Kate finished the race 6 seconds faster than Alexia, while Trina finished the race 3 seconds faster than Kate. If their combined time was 2 minutes and 39 seconds, find each girl’s individual time.

Answers

Answer:

Kate = 52 seconds, Alexia = 58 seconds, Trina = 49 seconds

Step-by-step explanation:

A = K + 6

T = K - 3

K + A + T = 2 min 39 sec or 159 sec

K + (K + 6) + (K - 3) = 159sec

3K + 3 = 159sec

3K = 156sec

K = 52 sec

A = 52 + 6 = 58 sec

T = 52 - 3 = 49 sec

So if y varies directly as x, and y=21 when x=3. What is x when y=42?

Answers

Answer:

x = 6

Step-by-step explanation:

Equation:

[tex]\frac{3}{21} = \frac{x}{42}\\\\Cross - multiply\\\\3 *42 = 21x\\\\126 = 21x\\\\x = 6[/tex]

-Chetan K

Jamya mixes 3 cups of soda with 5 cups of punch. How much does she mix with 18 cups of punch?

Answers

Answer:

Well we can make a proportion in this scenario

So 3 cups of soda to 5 cups of punch

And how much soda for 18 punch.

Well we can do this

make “x” the amount of soda

And then make a proportion

3/5 = x/ 18

Now solve

You can cross multiply

54=5x

x=10.8

10.8 soda

The sum of two consecutive odd numbers is 52.Using an algebraic equation
find the two odd numbers.

Answers

Answer: 25, 27

Step-by-step explanation:

52=x+x+2=50=2x=x=25

The distance from the Earth to the moon is approximately 238,900 miles. What is the value of 8 in this number?

Answers

8000                                                    hope it helps :) :)                                                

Answer:

8000

Step-by-step explanation:

what is the coefficient of the first term in the expression 8x+3y+4


a: y

b: 3

c: x

d: 8

Answers

Answer:

d

Step-by-step explanation:

the first term is 8x. 8 is the coefficient and x is the base. so the answer is 8.

PARALLEL PERPENDICULAR OR NEITHER OR SAME slope

Answers

Answer:

21. Same Line

22. Same Line

23. Perpendicular

24. Neither

25. Parallel

26. Neither

27. Neither

28. Neither

29. Perpendicular

30. Perpendicular

31. Neither

32. Perpendicular

33. Parallel

34. Perpendicular

35. Perpendicular (?)

36. Neither

37. Neither

38. Parallel

39. Neither

40. Parallel

Actually the answer is 7560.Because 3 1/2 X 2x4 X 4, 4 1/2 X x5 X 1=7560

Answers

Answer:

k

Step-by-step explanation:


Is x+y=10 linear or non

Answers

Answer:

Not

Step-by-step explanation:

In this case, the degree of variable y is 1 , the degrees of the variables in the equation violate the linear equation definition, which means that the equation is not a linear equation.

Suppose the graph of y = f(x) is translated left 2 units, and up 8 units, then stretched vertically by a
factor of 3.

The new graph will have equation y =

Answers

Answer: f(x)=3(x+4)+ 8

Step-by-step explanation:

Stretch vertically by a factor of 3:  y = 3x

 

Then, translate two units leftward:  y = 3(x+2)

 

Then, translate 8 units upward:  y = 3(x+4)+ 8

A cylinder has a base radius of 8 meters and a height of 19 meters. What is its
volume in cubic meters, to the nearest tenths place?

Answers

Answer:V≈3820.18m3 the best i got

Step-by-step explanation: V=πr2h=π·82·19≈3820.17667m³ i hope this helps

In the expression 4ab + 5a
- 3c, what is the coefficient of the term 4ab ?

Answers

Answer:

4

Step-by-step explanation:

coefficients are the numbers in a term, and the letter is called constant

Answer:

4

Step-by-step explanation:

The numeric value of the term is called the coefficient of the term.

Mrs. Rashad Is baking 3 ples, She needs 1 /6 cups of strawberries for each ple. How many cups of strawberries does she need in all?

Answers

Answer: 3/6 or 1/2

Step-by-step explanation: 1/6 x 3 = 3/6 or simplified form 1/2.

Answer:

1/2 cups of strawberries is required.

Step-by-step explanation:

1 pie = 1/6 cups of strawberries

=> 3 pies = 1/6 x 3

=> 3 pies = 1/2 cups of strawberries.

Hoped this helped.

what equation is equal to 2x+3y=12

Answers

Answer:

y=-2/3x+4

Step-by-step explanation:

2x+3y=12 --- rewrite so it looks like y=mx+b

3y=-2x+12

y=-2/3x+4

find the nth term of 1,6,11,16

Answers

Answer:

5n-4

Step-by-step explanation:

The rule of the sequence is 5n-4.

If n=1 then 5(1)-4=1 because 5x1=5 and 5-4=1

If n=2 then 5(2)-4=6 because 5x2=10 and 10-4=6

If n=2 then 5(3)-4=11 because 5x3=15 and 15-4=11

If n=2 then 5(4)-4=16 because 5x4=20 and 20-4=16

(21x)-(-16+7x) Subtract.

Answers

Answer:

=14x+16

Step-by-step explanation:

21x−(−16+7x)

=21x+−1(−16+7x)

=21x+(−1)(−16)+−1(7x)

=21x+16+−7x

=21x+16+−7x

=(21x+−7x)+(16)

=14x+16

Answer:

14x+16

Step-by-step explanation:

(21x)-(-16+7x)

Distribute the minus sign

21x+16-7x

Combine like terms

14x+16

Solve for r.
-70 +1 > 22
OR
102 +41 81

Answers

-69>22 or 224 is what I think the answer is not too sure
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