Math 9, Lesson 6, Fall 2018, 10/21/2018

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We continue study of standard deviation. We first review the formula for ungrouped data and grouped data.

We apply the standard deviation to help analyze two data sets. While means can give us the picture of average, standard deviation helps us to determine how consistent the data are. For example, if we look at two sets of data representing two basketball players’ scores, the lower the standard deviation, the more consistent the player is.

Homework:

Print these pages: Page 1Page 2Page 3Page 4

Workbook Page 2, #7, 8, 9, 10, 12, 14, 16.

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