Question

Shelly found that the coefficient of determination between the age of a runner x and the runner’s finishing position y was about 0.728. What can she conclude?

72.8% of the variation in and the runner’s finishing position is explained by the runner’s age.

0.728% of the variation in and the runner’s finishing position is explained by the runner’s age.

53% of the variation in and the runner’s finishing position is explained by the runner’s age.

0.728 more variation in and the runner’s finishing position is caused by the runner’s age.

Answer 1

help):

Answer 2

its the first one

Answer 3

http://www.statisticshowto.com/what-is-a-coefficient-of-determination/

Answer 4

are you sure?

Answer 5

according to that yeah it should be the first one

Answer 6

thank you so much

Answer 7

was it right?

Answer 8

idk it doesn't tell me until after i finish.

Answer 9

i stil have two questions.

Answer 10

do ya need help with that as well lol

Answer 11

yeah this and one more (:

Answer 12

answer should be b

Answer 13

y = 0.26x + 16.9?

Answer 14

yup

Answer 15

thanks! do you know about the second one i sent?

Answer 16

.95

Answer 17

ok everything was right cept the last one, it was .91

Answer 18

thank you !!

Answer 19

oh okie damn my bad sorry my rounding might have been off or i might have mistyped the number

Answer 20

do you want to know how i did those lol?

Answer 21

no don't worry! you helped so much, thank you.

Answer 22

i should want to but i am so sleepy so.... next time ahahaha

Answer 23

haha alright thats your call well take care good luck

Answer 24

thanks!!!

Answer 25

no problem