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Author Question: If the correlation between practice and performance accuracy is .80, how much of the variance in ... (Read 42 times)

jessicacav

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  • Posts: 558
on: Jun 20, 2018
If the correlation between practice and performance accuracy is .80, how much of the variance in performance is not accounted for by practice?
 
  a. 6.4
  b. 20
  c. 36
  d. 64

Question 2

If two variables are not related in any way, the coefficient of correlation must be:
 
  a. ?1
  b. 1
  c. 0
  d. .5


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pratush dev

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Reply #1 on: Jun 20, 2018
Answer to Question 1

C

Answer to Question 2

C


jessicacav

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  • Posts: 558
Reply 2 on: Jun 20, 2018
Thanks for the timely response, appreciate it

coreycathey

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  • Posts: 333
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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