Measures of Spread: Crash Course Statistics #4
Today, we're looking at measures of spread, or dispersion, which we use to understand how well medians and means represent the data, and how reliable our conclusions are. They can help understand...
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Hi I’m Adriene Hill, and welcome to Crash Course Statistics. So in the last episode we talked about the “middle” of sets of data, what statisticians call the central tendency. Today...we’re heading to the data on both sides of that middle. What statisticians call “measures of spread”. Not to be confused with how I gauge the quality of my peanut butter and jelly sandwich. Measures of spread? Get it? Cause you spread the peanut butter and jelly. Anyway, statistical measures of spread...or dispersion... tell us how data is spread around the middle. That lets us know how well the mean or median represents the data. And how much we trust conclusions based on the mean and median. And, I can hear you saying to the screen...come on Adriene...wh...
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Hi I’m Adriene Hill, and welcome to Crash Course Statistics. So in the last episode we talked about the “middle” of sets of data, what statisticians call the central tendency. Today...we’re heading to the data on both sides of that middle. What statisticians call “measures of spread”. Not to be confused with how I gauge the quality of my peanut butter and jelly sandwich. Measures of spread? Get it? Cause you spread the peanut butter and jelly. Anyway, statistical measures of spread...or dispersion... tell us how data is spread around the middle. That lets us know how well the mean or median represents the data. And how much we trust conclusions based on the mean and median. And, I can hear you saying to the screen...come on Adriene...wh...
