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Author Question: What z-score value separates the highest 10 of the scores in a normal distribution from the lowest ... (Read 78 times)

storky111

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on: Jun 20, 2018
What z-score value separates the highest 10 of the scores in a normal distribution from the lowest 90?
 
  a. z = 1.28 c. z = 1.28
  b. z = 0.25 d. z = 0.25

Question 2

What is the probability of randomly selecting a z-score less than z = 1.25 from a normal distribution?
 
  a. 0.8944 c. 0.3944
  b. 0.1056 d. 0.2112


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carolinefletcherr

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

A

Answer to Question 2

B


storky111

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Reply 2 on: Jun 20, 2018
Gracias!

xiaomengxian

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Reply 3 on: Yesterday
Excellent

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