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anyanavicka [17]
4 years ago
9

For which data set is a linear regression most reasonable?

Mathematics
2 answers:
Anna007 [38]4 years ago
6 0

Answer:its c. a set of four data pairs with a correlation coefficient r__ -0.8

Step-by-step explanation:hope it helpedaint i the branliest

Gnesinka [82]4 years ago
4 0

Answer:

a set of four data pairs with a correlation coefficient r = –0.8

Explanation:

The correlation coefficient, or r value, tells us how well the regression model fits the data.  The r values range from -1 to 1, with -1 being a perfect fit of a negative trend and 1 being a perfect fit of a positive trend.  The closer the r value is to -1 or 1, the better the line fits; the closer the r value is to 0, the worse the fit.

Since the r value is -0.8, which is very close to 1 (think 80%), this means this would be a good candidate for linear regression.

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Solve the equation -5(s+30)=-17
zzz [600]

Answer:

s = -133/5 = -26.600 ⬇️

Step-by-step explanation:

Step by step solution :

Step  1  :

Equation at the end of step  1  :

 (0 -  5 • (s + 30)) -  -17  = 0

Step  2  :

Step  3  :

Pulling out like terms :

3.1     Pull out like factors :

  -5s - 133  =   -1 • (5s + 133)

Equation at the end of step  3  :

 -5s - 133  = 0

Step  4  :

Solving a Single Variable Equation :

4.1      Solve  :    -5s-133 = 0

Add  133  to both sides of the equation :

                     -5s = 133

Multiply both sides of the equation by (-1) :  5s = -133

Divide both sides of the equation by 5:

                    s = -133/5 = -26.600

One solution was found :

                  s = -133/5 = -26.600

7 0
3 years ago
What is the value of 1 raised to a negative exponent? Use examples to support your answer.
antoniya [11.8K]

Answer:

1^-1 = 1/1^1 = 1

Step-by-step explanation:

In fact, 1^345 = 1 and 1^-345 = 1

Zero to any power is 0.

1 to any power is 1

5 0
3 years ago
Solve: 5 (x+2) +2x<br> make sure to show your work
Kazeer [188]

Answer:

5 (x+2) +2x is equal to 7x + 10

Step-by-step explanation:

To find the value of this equation you would have to apply the distributive property by changing 5 (x+2) to 5x +10. (When applying the distributive property you will always multiply the numbers in the parentheses by the number on the left of it). Then you would combine like terms by adding 2x and 5x together. You will then have 7x + 10.

4 0
4 years ago
Read 2 more answers
Help! I honestly dont get this !
Doss [256]

Answer:

i don't get that ether

Step-by-step explanation:

5 0
4 years ago
Which expression uses the greatest common factor and distributive property to find 10+50?
Rudiy27
Ab+ac=a(b+c) where a is the greatest common factor
find greatest common factor of 10 and 50
10=1,2,5,10
50=1,2,5,10,25,50
greatest common is 10
a=10
10(1)+10(5)=10(1+5)=10(6)=60
3 0
4 years ago
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