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Author Question: Z is a standard normal random variable. The P (1.41 < Z < 2.85) equals a. 0.4978 b. 0.4207 ... (Read 63 times)

ssal

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  • Posts: 572
on: Jun 24, 2018
Z is a standard normal random variable. The P (1.41 < Z < 2.85) equals
 a. 0.4978
  b. 0.4207
  c. 0.9185
  d. 0.0771

Question 2

Given that Z is a standard normal random variable, what is the probability that -2.08  Z  1.46?
 a. 0.9091
  b. 0.4812
  c. 0.4279
  d. 0.0533


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peilian

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

D

Answer to Question 2

A


ssal

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  • Posts: 572
Reply 2 on: Jun 24, 2018
Great answer, keep it coming :)

frankwu0507

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Reply 3 on: Yesterday
Excellent

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