## Upper Quartile Definition & Formula

If you are willing to assume the data are normally distributed or approximately so, then the inter-quartile range (IQR), which is defined as Q3 − Q1, is equal to SD × 1.35 and mean = median.

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## What Is a Quartile? Example and How It Works

It cuts data in half. 3. The third quartile (Q 3) The third quartile, also known as the upper quartile (QU), represents the 75th percentile of the data. It separates the lowest 75% of data from the highest 25%. Quartile formula The formula for

## 4.5.1 Calculating the range and interquartile range

Quartile 3 (Q3) = 7; Interquartile Range. The Interquartile Range is from Q1 to Q3: To calculate it just subtract Quartile 1 from Quartile 3, like this: Example: The Interquartile Range is: Q3 − Q1 =

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## Quartile calculator Q1, Q3 (statistics)

The upper quartile, Q3, is defined similarly as the value such that a quarter of the observations are larger. The interquartile range, is the distance between these two: IQR = Q3 -

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## Quartile Calculator

Quadrant In mathematics, a quadrant is one of the four sections of a rectangular coordinate plane. The quadrants are separated by the x- and y-axes and are labeled I through IV, starting in the upper right quadrant and going

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