Interpret the lower quartile

Answer 1

In statistics, quartiles are a type of quantiles which divide the number of data points into four parts, or quarters, of more-or-less equal size. The data must be ordered from smallest to largest to compute quartiles. This refers to the box-and-whisker plot.

In this case, the first quartile (Q₁) is defined as the 25th percentile, where the lowest 25% data lies below this point. This is known as the lower quartile. To find the lower quartile, you need to first find the median (Q₂) based on the data set and then find the middle value between the minimum value and the value of Q₂.