PERT Practice Test 2026 – Complete Guide for Exam Prep

Question: 1 / 400

In statistics, what does a "median" represent?

The highest value in a data set.

The average of a data set.

The median of a sorted list of numbers.

The middle value in a sorted list of numbers.

The median is defined as the middle value in a sorted list of numbers. To find the median, you first arrange the data set in ascending or descending order. If there is an odd number of observations, the median is the value that falls directly in the center of the list. If there is an even number of observations, the median is calculated by taking the average of the two central numbers. This measure is particularly useful because it is not affected by extremely high or low values in the data set, making it a robust indicator of central tendency that can represent a typical value in a set of data. Understanding the median helps in analyzing the distribution and skewness of data, providing insights that might not be immediately apparent when looking at measures such as the mean.

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