Quartile

/ˈkwɔːrtaɪl,ˈkwɔːrtl/

noun

One of four equal parts of a set of data points.

According to the data, the third quartile of students scored above 75% on the test.

Technical

Definition 1 of 2

Pro Tip 1/3

The word quartile refers to dividing data into four equal parts, ensuring uniform distribution.

Each quartile contained 25 students when the class was segmented by test scores.

Pro Tip 2/3

Quartiles are often specified as 'lower', 'middle', and 'upper' to denote their positions in the data set.

The middle quartile is also known as the median in a data set.

Pro Tip 3/3

Quartiles help describe the spread of values, showing how they're distributed across the dataset.

The wide range in the upper quartile indicates high variance among top scorers.

percentile

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