This math topic focuses on understanding how the mean of a set of numbers is affected when a specific value is removed. The problems present various sets of three numbers and describe a desired change in the mean. The task is to identify the number which, when removed, results in the stated change of mean. This involves critical thinking and computation related to the concept of averages (mean) in statistics, within the broader scope of mean, median, and mode at an advanced level.
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What number can be removed for these numbers to have the given change in their mean
8, 2, 2
mean increases by 1