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Learn about mean, median, and mode with Khan Academy's comprehensive review of these fundamental concepts in statistics.
Statistics intro: Mean, median, & mode (video) | Khan Academy
The mean (average) of a data set is found by adding all numbers in the data set and then dividing by the number of values in the set. The median is the middle value when a data set is ordered from least to …
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Mean absolute deviation (MAD) (video) | Khan Academy
To find the Mean Absolute Deviation (MAD), first calculate the mean (average) of your data set. Next, find the absolute difference (distance) between each data point and the mean. Sum up these …
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What does -∞ mean? (negative infinity?) – Khan Academy Help Center
When I was practicing limits, the answer to one of the questions was -∞. Does this mean ¨negative infinity¨? What does ¨negative...
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Estimating mean and median in data displays (practice) | Khan Academy
Practice finding the approximate location of the mean and median in histograms and dot plots.
What does the numbers on the sun badges mean? - Khan Academy …
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