Descriptive Statistics

Learning Objectives

•Distinguish between measures of central tendency, measures of variability, and measures of shape

•Understand the meanings of mean, median, mode, quartile, percentile, and range

•Compute mean, median, mode, percentile, quartile, range, variance, standard deviation, and mean absolute deviation

••Differentiate between sample and population variance and standard deviation

•Understand the meaning of standard deviation as it is applied by using the empirical rule

•Understand box and whisker plots, skewness, and kurtosis

Measures of Central Tendency

•Measures of central tendency yield information about “particular places or locations in a group of numbers.”

•Common Measures of Location

–Mode

–Median

–Mean

–Percentiles

–Quartiles

Download Files

descriptive-statistics.ppt (0.94 MB )