Mean Absolute Deviation

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Presentation transcript:

Mean Absolute Deviation

Determine the mean absolute deviation of the following set of numbers 58, 72, 88, 66, 40, 80, 60 and 48 Step 1: put your numbers in order from least to greatest 40 64 24 12.5 is the mean absolute Deviation The average distance from the mean is 12.5 - 48 64 16 58 64 6 60 64 4 66 64 2 72 64 8 80 64 16 88 64 24 Step 2: average these numbers (40 + 48 + 58 + 60 + 66 + 72 + 80 + 88) / 8 = 64 Step 3: place this number in your table and subtract. Write your answer as a positive number even if you get a negative number Step 4: average these numbers (24 + 16 + 6 + 4 + 2 + 8 + 16 + 24) / 8 = 12.5

Step 1: put your numbers in order from least to greatest 65 78.6 13.6 Determine the mean absolute deviation of the following set of numbers 88, 72, 77, 65, 95, 80, 70, 106, 65 and 68 Step 1: put your numbers in order from least to greatest 65 78.6 13.6 - 65 78.6 13.6 10.92 is the mean absolute Deviation The average distance from the mean is 10.92 68 78.6 10.6 - 70 78.6 8.6 72 78.6 6.6 77 78.6 1.6 80 78.6 1.4 88 78.6 9.4 95 78.6 16.4 106 78.6 27.4 Step 2: average these numbers (65 + 65 + 68 + 70 + 72 + 77 + 80 + 88 + 95 + 106)/10 = 64 Step 3: place this number in your table and subtract. Write your answer as a positive number even if you get a negative number Step 4: average these numbers (13.6+ 13.6 + 10.6 + 8.6 + 6.6 + 1.6 + 1.4 + 9.4 + 16.4 + 27.4)/10 = 10.92

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Determine the mean absolute deviation of the following set of numbers 58, 72, 88, 66, 40, 80, 60 and 48 Step 1: put your numbers in order from least to greatest ______ is the mean absolute Deviation. The average distance from the mean is _______ - Step 2: average these numbers Step 3: place this number in your table and __________. Write your answer as a positive number even if you get a negative number Step 4: average these numbers

Step 1: put your numbers in order from least to greatest Determine the mean absolute deviation of the following set of numbers 88, 72, 77, 65, 95, 80, 70, 106, 65 and 68 Step 1: put your numbers in order from least to greatest - _______ is the mean absolute Deviation The average distance from the mean is ________ - Step 2: average these numbers Step 3: place this number in your table and ________. Write your answer as a positive number even if you get a negative number Step 4: average these numbers