Find the mean deviation about mean for the data: 6, 7, 10, 12, 13, 4, 8, 12.

Type: MCQ • Marks: 1

A. 1) 3.00

B. 2) 2.75

C. 3) 2.25

D. 4) 3.25

Explanation

Mean = (6+7+10+12+13+4+8+12)/8 = 72 / 8 = 9. Absolute deviations |x - 9|: 3, 2, 1, 3, 4, 5, 1, 3. Sum = 22. Mean Deviation = 22 / 8 = 2.75.

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UP TGT Mathematics

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