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Jan
Example Of Percentile Rank. To find the 10-90 percentile range of the sample data set above follow these steps. Percentile rank also uses the concept of percentage which is the notion of rate per 100. Lets begin with an example. The obtained value will be the kth percentile of your data set.
Learn how to calculate percentile for the given example. The percent of cases that are at or below a score. In a recent test 12 got D 50 got C 30 got B and 8 got A. That score has no meaning unless you know what percentile you fall into. For example 90 of the scores are less than 6 nine less than 6 none equal 6. Assume a pediatricians office wants to know where a certain weight percentile ranks within their statistical information on healthy infant weight ranges at 6 months old.
The obtained value will be the kth percentile of your data set.
The 1st decile is the 10th percentile the value that divides the data so 10 is below it The 2nd decile is the 20th percentile the value that divides the data so 20 is below it etc. What is the percentile class rank. But we only count half of the cases that are at the score. We can calculate the class rank using the above given formula. To find the percentile rank of 145 apply the formula. The obtained value will be the kth percentile of your data set.