# The first quartile of the data set is equal to the?

**Question: The first quartile of the data set is equal to the?**

The first quartile, also known as Q1 or the lower quartile, is a statistical measure that represents the 25th percentile of a data set. This means that 25% of the data points are less than or equal to the first quartile value. To find the first quartile, you would arrange your data in ascending order and identify the value below which a quarter of the data lies. It's essentially the median of the lower half of the data set. The first quartile is a valuable measure in descriptive statistics as it helps to understand the distribution of data, particularly in terms of its spread and central tendency. It is commonly used in conjunction with the median (Q2) and the third quartile (Q3) to provide a more comprehensive picture of how data is dispersed across the range.

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