STAT231 Lecture 4: May 9 2017

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sangriaswan635

13 May 2018

School

University of Waterloo

Department

Statistics

Course

STAT231

Professor

James Adcock

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Related Questions

The relative frequency of a class is computed by

a. dividing the midpoint of the class by the sample size.
b. dividing the frequency of the class by the midpoint.
c. dividing the sample size by the frequency of class.
d. dividing the frequency of the class by the sample size.

emeraldhyena722

A distribution has a standard deviation of σ=10. Find the z-score for each of the following locations in the distribution.

a. Above the mean by 5 points.

b. Above the mean by 2 points.

c. Below th mean by 20 points.

d. Below the mean by 15 points.