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Author Question: Suppose a population relative frequency distribution has mean = 7.5 and standard deviation = 1.5. ... (Read 80 times)

NClaborn

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on: Jul 25, 2018
Suppose a population relative frequency distribution has mean  = 7.5 and standard deviation  = 1.5. The z score corresponding to x = 10.5 is
 
  A) 2 B) 3 C) -2 D) 1.5

Question 2

Find the 80th percentile for the following data: 20, 14, 12, 3, 12, 36, 60, 47, 21, 27, 20, 19, 34, 58, 35, 10, 6, 50, 36.
 
  A) 40 B) 12 C) 50 D) 47


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phuda

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

A

Answer to Question 2

D


NClaborn

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Reply #2 on: Jul 25, 2018
Thanks


phuda

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Reply #3 on: Jul 25, 2018
Welcome :)


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