Читать книгу Student Study Guide to Accompany Statistics Alive! - Wendy J. Steinberg - Страница 22

 Understand what dispersion means as it pertains to a set of data

 Calculate the range of a set of data

 Calculate the variance of a set of data

 Understand how a standard deviation is obtained from the variance

 Determine when the mean absolute deviation is used

 Distinguish between descriptive (N) and inferential (n − 1) formulas for the variance and standard deviation