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Consumer40s Standard Deviation

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Page 1: Consumer40s Standard Deviation

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Lesson 2: Standard DeviationMeasures of Variability:

• Range -

­ a more complex measure of variability that measures the distance that each piece of data is from the mean

• Standard Deviation

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The following are the test scores of a group of Grade 12 students from High School A. Example 1:

• Calculate the standard deviation for this data set. 

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Calculating Standard Deviation: Summary 

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The following are the test scores of a group of Grade 12 students from High School B. Example 2:

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High School A

High School B 

Mean  (X) 

Range 

Standard Deviation(Sx) 

Comparing the 2 High Schools:

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Assignment # 2 (Statistics Handbook)