Practice Problems on Percentile Formula

1. Calculate the 40th percentile for the following set of data: {4, 8, 15, 16, 23, 42}

2. Find the 75th percentile for the following set of exam scores: {55, 60, 65, 70, 75, 80, 85, 90, 95, 100}

3. Determine the 90th percentile for the dataset below: {3, 7, 10, 15, 20, 25, 30, 35, 40, 45, 50}.

4. Calculate the 25th percentile for this set of ages: {12, 14, 15, 17, 19, 21, 23, 25, 27, 29, 30}.

Percentile Formula is used in determining the performance of a person in comparison with others. It is used mostly in schools during the results of tests to check where a person stands out from others. The percentile formula for a score ‘x’ can be defined as number of scores that fall under ‘x’ divided by the total number of values in the given population.

In this article, we will cover the percentile formula, and some solved examples on it.