What is the mean absolute deviation of the data set? {21, 22, 24, 26, 27, 28, 20, 30}

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Well you need to get quartile 3 and 1 subtract them and you will get the answer of 55-43=12


1.) add all the data points together then divide by how many numbers you have 2.whatever number you got from the division subtract that from every number 3. When you get the numbers you subtracted you add them all up and divide by your data points which is 8 and you get the answer of 3

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