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Author Question: Scores on an English test are normally distributed with a mean of 31.4 and a standard deviation of ... (Read 82 times)

AEWBW

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on: Jul 25, 2018
Scores on an English test are normally distributed with a mean of 31.4 and a standard deviation of 8.9. Find the 41st percentile.
 
  A) 29.4 B) 26.1 C) 36.7 D) 33.4

Question 2

Assume that the random variable X is normally distributed with mean and standard deviation Find the 87th percentile for X.
 
  A) 66.44 B) 96.44 C) 89.72 D) 93.56


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alexisweber49

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Reply #1 on: Jul 25, 2018
Answer to Question 1

A

Answer to Question 2

D


AEWBW

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Reply 2 on: Jul 25, 2018
Great answer, keep it coming :)

phuda

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Reply 3 on: Yesterday
Gracias!

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