I have a math assignment on percentiles and class ended before the teacher could explain how to do percentile ranks, so I basically need a nice juicy teaching on the subject so I can find the percentile rank in a list of data and find how many it scored above and below and all that jazz that comes along with percentile ranks. Thanks!
2006-09-25 15:52:53 · 2 answers · asked by dinasaur01 2 in Science & Mathematics ➔ Mathematics
The k-th percentile rank in a numerical data series is the item for which k% of the values are less than the given item.
E.g., if the data series contains yearly incomes of 5000 people than the 50th percentile is the income of the person who has the 2500th smallest income (it is also called the median), the 10th percentile is the income of the person with the 500th smallest income and the 1st percentile is the income of the person with the 50th smallest income.
2006-09-25 22:15:44 · answer #1 · answered by ted 3 · 0⤊ 0⤋
Number of people below you.
2006-09-25 23:16:30 · answer #2 · answered by ag_iitkgp 7 · 0⤊ 2⤋