A quartile is a statistical term describing a division of a data set into four equal intervals. Find out how it's used to calculate variability around the median.

Derive your third quartile based on whether your data set includes an even or odd set of values. With an odd number of values, multiply N by 3, add 1 and divide the result by 4.

Press Ganey found higher scores in patient experience across all care settings in 2025, and a few metrics distinguish top-quartile facilities from the rest, according to a July 21 report. “Experience ...

As data from McKinsey reveals, the top quartile of companies for ethnic diversity are 36% more likely to financially outperform their less diverse peers. Those added perspectives can contribute to ...

They found that the spread between top and bottom quartile funds in private equity is a whopping 12.9 percentage points compared to 1.5 percentage points for public equities funds.