The Percentile calculator computes the percentile associated with one observation (y) in a population of number values (x).
INSTRUCTIONS: Enter the following:
(x) This is the set of comma separated numeric values (e.g. 4,-1.2,8,9 )
(y) This is a single observation
Percentile: The calculator returns the percentile which is the percent of objects in the group x that are below the value y. This Percentile calculator is a prominent feature with other statistical functions in the College Level Statistics Calculator (Stat Calc).
The formula for the percentile is as follows:
`PR_y = (B + 1/2 E)/n * (100)` where:
B is the number of raw scores in set X below y
E is the number of raw scores equal to y including y.
Observational Stats: This function accepts a table of numbers separated by commas and calculates observational statistics for any of the columns. This includes count, min, max, sum, sum of squares (Σx²), square of the sum (Σx)², mean, median, mode, range, mid point, rand, sort up, sort down, rand, population variance, population standard deviation, the sample/experimental variance, sample/experimental standard deviation.
Frequency Distribution: This function lets you enter a string of numbers separated by commas, a low and high range and a number of bins. It then computes how many of the observations are in each of the bins between the high and low values designated.