[Answered] If the correlation between practice and performance accuracy is .80, how much of the variance in ...

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Author Question: If the correlation between practice and performance accuracy is .80, how much of the variance in ... (Read 44 times)

jessicacav

Hero Member
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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Marked as best answer by a Subject Expert

pratush dev

Sr. Member
Posts: 321

Reply #1 on: Jun 20, 2018

Answer to Question 1

C

Answer to Question 2

C

jessicacav

Member
Posts: 558

Reply 2 on: Jun 20, 2018

Wow, this really help

miss.ashley

Member
Posts: 371

Reply 3 on: Yesterday

Thanks for the timely response, appreciate it

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