ParaPro Assessment Practice Exam - Prep, Practice Questions & Study Guide

The term that identifies the middle number in a data set when arranged in numerical order is the median. To find the median, you first organize the numbers from smallest to largest. If there is an odd number of values, the median is the middle number. If there is an even number of values, it is the average of the two middle numbers. This is an important concept in statistics as the median is less affected by extreme values compared to the mean, providing a better representation of the central tendency in skewed distributions.

The other terms refer to different statistical measures: range represents the difference between the highest and lowest values; mode refers to the number that appears most frequently in a data set; and mean is the average obtained by adding all the numbers and dividing by the count of numbers. Each of these measures provides different insights into the data set but does not denote the middle value like the median does.