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Author Question: The mean of a normal probability distribution is 500 and the standard deviation is 10 . About 68 of ... (Read 83 times)

jwb375

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on: Jul 24, 2018
The mean of a normal probability distribution is 500 and the standard deviation is 10 . About 68 of the observations lie between what two values?

Question 2

The value of z(0.10) z(0.90) is
 a. 2.56.
  b. -2.56.
  c. 1.28.
  d. -1.28.


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nickk12214

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

490 and 510

Answer to Question 2

A


jwb375

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Reply 2 on: Jul 24, 2018
YES! Correct, THANKS for helping me on my review

lindahyatt42

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Reply 3 on: Yesterday
Excellent

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