Question

find the mean deviationabout the median of data 36,46,42,45,55,46,51,49



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Answer 1

Answer:

Mean = 36+46+42+45+55+46+51+49 / 8

= 370 / 8

x = 46.25

Now Mean Deviation = €( xi - x) / n

= 32.50 - 46.25 / 8

= - 13.75 / 8

= 1.71

Xi Xi - X ( Xi - X )

36 36 - 46.25 10.25

46 46 - 46.25 0.25

42 42 - 46.25 4.25

45 45 - 46.25 1.25

55 55 - 46.25 8.75

46 46 - 46.25 0.25

51 51 - 46.25 4.75

49 49 - 46.25 2.75

Total Xi = 32.50