Descriptive statistics

OpenStax

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Stem-and-leaf graphs (stemplots), line graphs, and bar graphs

Histograms, frequency polygons, and time series graphs

1 Frequency polygons

2 Constructing a time series graph

3 Uses of a time series graph

5 Chapter review

Measures of the location of the data

Measures of the center of the data

Skewness and the mean, median, and mode

Measures of the spread of the data

1 The standard deviation

2 The standard deviation provides a measure of the overall variation in

3 The standard deviation can be used to determine whether a data value is

4 Calculating the standard deviation

5 Formulas for the sample standard deviation

6 Formulas for the population standard deviation

7 Sampling variability of a statistic

8 Explanation of the standard deviation calculation shown in the table

9 Standard deviation of grouped frequency tables

10 Comparing values from different data sets

12 Chapter review

13 Formula review

14 Bringing it together

Descriptive statistics

Source: OpenStax, Introductory statistics. OpenStax CNX. May 06, 2016 Download for free at http://legacy.cnx.org/content/col11562/1.18

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