Range, variance and standard deviation as measures of dispersion - By Khan Academy
This video goes over the main ways we measure dispersion of data, then shows those vlaues for two different data sets. Remember that simply comparing the means or medians of two data sets is not sufficient to fully compare the data. Understanding how data is arranged about the "center" of the data is also critical in understand and comparing the sets
Range, variance and standard deviation as measures of dispersion is a free educational video by Khan Academy.It helps students in grades 9,10,11,12 practice the following standards HSS.ID.A.2,HSS.ID.A.3,HSS.IC.B.5.
This page not only allows students and teachers view Range, variance and standard deviation as measures of dispersion but also find engaging Sample Questions, Apps, Pins, Worksheets, Books related to the following topics.
1. HSS.ID.A.2 : Use statistics appropriate to the shape of the data distribution to compare center (median, mean) and spread (interquartile range, standard deviation) of two or more different data sets..
2. HSS.ID.A.3 : Interpret differences in shape, center, and spread in the context of the data sets, accounting for possible effects of extreme data points (outliers)..
3. HSS.IC.B.5 : Use data from a randomized experiment to compare two treatments; use simulations to decide if differences between parameters are significant..
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