Median, Mean, & Mode. Topic: Math ClassBrain Visitor: For each data set, find the mean, the median, and the mode. Tell which measure you find most useful for decribing the data. Explain why. 1. 2. 3. 4. ClassBrain Response: I will work through the first problem to show you how it’s done, but after that you must use the same rules and apply them to the other three problems. Since you are trying to find the mean, median, and mode, I’ll explain what those three things are. Mean - This is the average value of a set of numbers. In the case of problem #1, your numbers are 7, 9, 5, 3, 15, 15. To find the mean you must add all of the numbers together, and divide by how many there. The mean is 9. Median - This is the number that is in the middle of your set. So, look at problem #1 and put your numbers in order from lowest to highest. That would be: 3, 5, 7, 9, 15, 15 There is an even number of numbers (6 total).
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