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Variability - Coggle Diagram
Variability
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Variability Types
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Variance- (σ² or s²): Average of the squared deviation from the mean. Tells us how far each number is from the mean
Standard Deviation (σ or s): The square root of the variance Easiest to interpret; expressed in same units as original dataset.
Standard Distributions
Normal, the mean is 0 and the standard deviation is 1
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Definition: Statistical measure of the spread or dispersion in a dataset. Shows how much scores differ from each other and the mean
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