Stratification (mathematics) - in Statistics

In Statistics

See stratified sampling.

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Famous quotes containing the word statistics:

    O for a man who is a man, and, as my neighbor says, has a bone in his back which you cannot pass your hand through! Our statistics are at fault: the population has been returned too large. How many men are there to a square thousand miles in this country? Hardly one.
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    and Olaf, too

    preponderatingly because
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