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Step 1: Find the mean

Step 2: Find the deviation from the mean

Step 3: Take the absolute value of the deviation

Step 4: Find the mean of the absolute deviation.

x----x-mean

63 63-63 0

69 69-63 6

62 62-63 -1

57 57-63 -6

64 64-63 1

mean = (63+69+62+57+64)/5 = 63

Taking the absolute deviations, we have 0,6,1,6,1

Averaging these deviations : (0+6+1+6+1)/5 =14/5 = 2.8

Mean absolute deviation = 2.8

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Q: What is mean absolute deviation 63 69 62 57 64?
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