Question 29. Calculate estimates of the standard deviations s, sy of the samples r = (5,9,7) and y = (-1,2,5) as well as the Pearson coefficient of correlation rzy of r and y. Which of the following answers are correct? a) s = 4, sy = 9

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Question 29. Calculate estimates of the standard deviations s,, sy of the samples r = (5, 9,7) and y = (-1,2,5)
as well as the Pearson coefficient of correlation rzy of r and y. Which of the following answers are correct?
a) s, = 4, sy = 9
8
b) rzy = 0
c) sz = 2, sy = 3
d) Tzy
e) rzy = 1
Transcribed Image Text:Question 29. Calculate estimates of the standard deviations s,, sy of the samples r = (5, 9,7) and y = (-1,2,5) as well as the Pearson coefficient of correlation rzy of r and y. Which of the following answers are correct? a) s, = 4, sy = 9 8 b) rzy = 0 c) sz = 2, sy = 3 d) Tzy e) rzy = 1
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