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emmynimmy

  • one year ago

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.

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  1. emmynimmy
    • one year ago
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    help):

  2. kva1992
    • one year ago
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    its the first one

  3. kva1992
    • one year ago
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    http://www.statisticshowto.com/what-is-a-coefficient-of-determination/

  4. emmynimmy
    • one year ago
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    are you sure?

  5. kva1992
    • one year ago
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    according to that yeah it should be the first one

  6. emmynimmy
    • one year ago
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    thank you so much

  7. kva1992
    • one year ago
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    was it right?

  8. emmynimmy
    • one year ago
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    idk it doesn't tell me until after i finish.

  9. emmynimmy
    • one year ago
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    i stil have two questions.

  10. emmynimmy
    • one year ago
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  11. kva1992
    • one year ago
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    do ya need help with that as well lol

  12. emmynimmy
    • one year ago
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    yeah this and one more (:

  13. emmynimmy
    • one year ago
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  14. kva1992
    • one year ago
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    answer should be b

  15. emmynimmy
    • one year ago
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    y = 0.26x + 16.9?

  16. kva1992
    • one year ago
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    yup

  17. emmynimmy
    • one year ago
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    thanks! do you know about the second one i sent?

  18. kva1992
    • one year ago
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    .95

  19. emmynimmy
    • one year ago
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    ok everything was right cept the last one, it was .91

  20. emmynimmy
    • one year ago
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    thank you !!

  21. kva1992
    • one year ago
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    oh okie damn my bad sorry my rounding might have been off or i might have mistyped the number

  22. kva1992
    • one year ago
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    do you want to know how i did those lol?

  23. emmynimmy
    • one year ago
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    no don't worry! you helped so much, thank you.

  24. emmynimmy
    • one year ago
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    i should want to but i am so sleepy so.... next time ahahaha

  25. kva1992
    • one year ago
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    haha alright thats your call well take care good luck

  26. emmynimmy
    • one year ago
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    thanks!!!

  27. kva1992
    • one year ago
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    no problem

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