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Statistics
Accounting
Part I Practice Problems on
Descriptive Statistics from
www.businessbookmall.com
Formula
Reviews From Quick Notes Statistics may help with these problems.
When printing, highlight just the problems and not the advertising and then choose File, Print, Section, and
OK.
Calculate the following using this sample data. Where
appropriate, state the symbol for the
measure and the formula used. Those not using a calculator or computer should
show all work.
Data: 20, 6, 15, 22, 13, 9, 2, 20, 10
1. Mean
2. Median
4. Variance
5. Standard Deviation
6 Pearson's Coefficient of skewness
7. 85th percentile
8. Third decile
9. Interquartile range
10. Use a paragraph or two containing complete sentences to define two variables, one that is skewed positively and one that is skewed negatively. Explain why you think the data is skewed.
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