"Variability means "lack of consistency", and it measures how much the data varies. Variance, standard deviation, Inter Quartile Range and Range are all measures of variability. Variance is the average squared deviation of a random variable from its mean"
"Variability means "lack of consistency", and it measures how much the data varies. Variance, standard deviation, Inter Quartile Range and Range are all measures of variability. Variance is the average squared deviation of a random variable from its mean"
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What is the difference between variance and variability? | Socratic
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