percentile


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Related to percentile: standard deviation

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.
References in periodicals archive ?
Figure 1 portrays the mean RTs at each percentile as a function of age decade.
Hence, a percentile estimate can be a point or an interval, depending on the distribution of the data.
Her scores in spelling and word attack skills were at the 4th and 16th percentiles respectively, indicating a significant discrepancy between potential or predicted achievement and actual achievement.
68 over the three-month period, causing an increase in liquidity from trading in the 19th percentile to the 10th percentile.
Children with a BMI between the 50th and 74th percentiles were five times more likely than those below the 50th percentile to become overweight or obese.
12 over the three-month period, causing an increase in liquidity from trading in the 14th percentile to the sixth percentile.
14 over the three-month period, causing an increase in liquidity from trading in the 11th percentile to the fifth percentile.
32 over the three-month period, causing a decrease in liquidity from trading in the second percentile to the fifth percentile.
Among ethnic groups, Latino students showed the greatest gains in reading, reporting a 15-point jump to the 50th percentile, up from the 35th percentile the year before.
72 over the three-month period, causing a decrease in liquidity from trading in the seventh percentile to the 12th percentile.
39 over the three-month period, causing a decrease in liquidity from trading in the 26th percentile to the 29th percentile.
Schools in western Los Angeles and eastern Ventura counties again scored well above the state average on a standardized statewide exam released Wednesday, with most districts placing 15 to 20 percentile points above the state average.