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Author Question: If x is normally distributed with mean 12 and standard deviation 2, then P(x 9) is a. P(z 9/10). ... (Read 51 times)

tingc95

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on: Jun 24, 2018
If x is normally distributed with mean 12 and standard deviation 2, then P(x  9) is
 a. P(z  9/10).
  b. P(z  3/2)
  c. P(z  2/3)
  d. P(z  3/4)

Question 2

If the coefficient of correlation is 0.90, then the coefficient of determination
 a. is also 0.9
  b. is either 0.81 or -0.81
  c. can be either negative or positive
  d. must be 0.81


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jaymee143

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Reply #1 on: Jun 24, 2018
Answer to Question 1

b

Answer to Question 2

D


tingc95

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Reply 2 on: Jun 24, 2018
Thanks for the timely response, appreciate it

adammoses97

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

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