For a random variable , the *100pth percentile *is the unique value such that . A *qth quantile* is a value such that . For example, if , we can either say 1120 is the twentieth percentile or 1120 is the one-fifth quantile.

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For a random variable , the *100pth percentile *is the unique value such that . A *qth quantile* is a value such that . For example, if , we can either say 1120 is the twentieth percentile or 1120 is the one-fifth quantile.

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Filed under Probability