# percentile

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## percentile

[per-sen´tīl]any one of the 99 values that divide the range of a probability distribution or sample into 100 intervals of equal probability or frequency; for example, 45 per cent of a population scores below the 45th percentile.

## per·cen·tile

(per-sen'tīl),The rank position of an individual in a serial array of data, stated in terms of what percentage of the group the individual equals or exceeds.

## percentile

the 100th part of a statistical distribution. A percentile rank of 80 indicates that 20% of the total number of cases scored above and 80% scored below in whatever characteristics were being studied.

## per·cen·tile

(pĕr-sen'tīl)The rank position of an individual in a serial array of data, stated in terms of what percentage of the group the individual equals or exceeds.

## percentile

One of 100 equal parts in an ordered sequence of statistical data. Thus, for instance, the 93rd percentile is the value that equals 93% of those in the series. If a value in a range of values falls in the 20th percentile, there are 19 lower and 80 higher. The method is widely used to record and check such parameters as the extent of body growth at a particular age.## per·cen·tile

(pĕr-sen'tīl)Rank position of an individual in a serial array of data, stated in terms of what percentage of the group the individual equals or exceeds.

## percentile,

*n*the number in a frequency distribution below which a certain percentage of fees will fall. E.g., the ninetieth percentile is the number that divides the distribution of fees into the lower 90% and the upper 10%, or that fee level at which 90% of dental professionals charge that amount or less and 10% charge more.

## percentile

1. one of 100 equal parts of a series of measurements, each group being of equal size, and arranged in order of their magnitude; the 20th percentile is the value in the series below which 20% of the values fall.

2. the dividing points between such groups.

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