This math topic focuses on advanced skills in statistics, particularly in calculating mean when a single value within a dataset is changed. It explores the effects of replacing numbers in various sets to achieve a specific target mean. Each problem presents a set of numbers and asks what a specific number can be changed to for the dataset to reach a desired mean. This set of problems is aimed at enhancing understanding of the mean and the sensitivity of data to changes in individual data points within the context of probability and statistics.
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What can the indicated number can be changed to for these numbers to have the given mean
1, 7, 8, 4
Change a 8 to change the mean to 4