This math topic focuses on calculating the necessary value to be added to sets of numbers to achieve a specified mean. Each problem is presented with a set of three initial numbers and a target mean. Students are required to determine which additional value, offered in multiple-choice format, when added to the set will result in the target mean. This advanced level of problems involves practical application of statistical concepts, specifically centered around the mean (average) calculation in the context of probabilities and statistics.
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What number can be added for these numbers to have the given mean
3, 8, 10
mean = 7