PERT Practice Test 2025 – Comprehensive Study Guide for Postsecondary Education Readiness Success!

Question: 1 / 400

What statistical measure is typically used to find the average?

Mode

Median

Mean

The mean is the statistical measure that is typically used to find the average. It is calculated by summing all the values in a data set and then dividing that sum by the number of values. This process gives a central value that represents the entire data set, effectively providing a measure of central tendency.

For example, if you have the numbers 2, 4, 6, and 8, the mean would be calculated as (2 + 4 + 6 + 8) / 4 = 5. This indicates that 5 is the average of those numbers, highlighting the central point around which the values are distributed.

Other measures, like the mode, represent the most frequently occurring value in a data set; the median indicates the middle value when the data is ordered, and the range measures the difference between the highest and lowest values. While these measures provide insight into the distribution of data, they do not serve the same purpose as the mean in representing an average.

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Range

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