Question

Find the mean deviation from the mean from the following data 6, 7, 10, 12, 13, 4, 8, 12

Answer 1

sum of observation by no of observation

6+7+10+12+13+4+8+12/8

72 /8

$72 \div 8 = 9$

then the answer is 9

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Answer 2

the mean of the scores is 9.625