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2016-02-02T22:37:00+08:00

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QUARTILE ---> means each of 4 equal groups into which a population can be divided according to the distribution of values of a particular variable.

---> Here, each of the 3 values of the random variable that divide a population into four groups.

DECILE ---> means each of 10 equal groups into which a population can be divided according to the distribution of values of a particular variable: "the lowest income decile of the population"

---> Here, each of the 9 values of the random variable that divide a population into 10 such groups.

PERCENTILE ---> means each of the 100 equal groups into which a population can be divided according to the distribution of values of a particular variable.

---> Here, each of the 99 intermediate values of random variable that divide a frequency distribution into 100 groups: " the tenth percentile for weight?

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