A frequency distribution has a mean of 100 and a standard deviation of 20. The class limits for one class are 50 up to 60. What are the standard normal z-statistics for the class limits? Select one: a. -20 and 20 b. -2.5 and -2.0 c. 2.0 and 2.5 d. -50 and -40

A frequency distribution has a mean of 100 and a standard deviation of 20. The class limits for one class are 50 up to 60. What are the standard normal z-statistics for the class limits? Select one: a. -20 and 20 b. -2.5 and -2.0 c. 2.0 and 2.5 d. -50 and -40

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.5: Comparing Sets Of Data

Problem 14PPS

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Question

A frequency distribution has a mean of 100 and a standard deviation of 20. The class limits for one class are 50 up to 60. What are the standard normal z-statistics for the class limits?

Select one:

a. -20 and 20

b. -2.5 and -2.0

c. 2.0 and 2.5

d. -50 and -40

Expert Solution