[Answered] Suppose a population relative frequency distribution has mean = 7.5 and standard deviation = 1.5. ...

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NClaborn

Hero Member
Posts: 560

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

Sr. Member
Posts: 348

Reply #1 on: Jul 25, 2018

Answer to Question 1

A

Answer to Question 2

D

NClaborn

Hero Member
Posts: 560

Reply #2 on: Jul 25, 2018

Thanks

phuda

Sr. Member
Posts: 348

Reply #3 on: Jul 25, 2018

Welcome

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