Question

Eloisa determined that the correlation coefficient for a set of data was –0.7.

What percent of the total variation in the y-values is not explained by the regression line?

%

Answer 1

@Daniellelovee

Answer 2

idk this one I'm sorry

Answer 3

ask @Directrix he/she is super smart

Answer 4

okay thanks I didn't know he was on. I fanned you. Thanks for the help

Answer 5

no problem and thank you :)

Answer 6

yw

Answer 7

@Directrix

Answer 8

@mathmale

Answer 9

•The percent of variation which is unexplained by the regression equation
•The unexplained variation divided by the total variation
•1 - r^2

https://people.richland.edu/james/lecture/m170/ch11-rsq.html

Answer 10

1 - r^2 =

1 - (–0.7)^2 = ? @freemap

Answer 11

2.4 just got the response

Answer 12

2.4 is not correct.

Try again: 1 - (–0.7)^2 =

1 - (-.7) * (-.7) = ?

Answer 13

What is .7 times .7 =

Answer 14

.49

Answer 15

What is 1 - .49 = ?

Answer 16

.51

Answer 17

.51 = 51%

What percent of the total variation in the y-values is not explained by the regression line

Answer 18

51%

Answer 19

Correct.

Answer 20

Thank you

Answer 21

You are welcome.