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Author Question: A z-score of 1.28 corresponds to approximately what percentile of the standard normal ... (Read 58 times)

Bernana

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on: Jul 24, 2018
A z-score of 1.28 corresponds to approximately what percentile of the standard normal distribution?

Question 2

Suppose that A and B are mutually exclusive events, and that P(A) = 0.4 and P(B) = 0.3 . Then, P(A and B) will be
 a. 0.0
  b. 0.4
  c. 0.3
  d. 0.7


katheyjon

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

90th percentile

Answer to Question 2

A


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