Question

The mean deviation about mode for the numbers
4/11,
6/11,
8/11,
9/11,
12/11,
8/11 .

Answer 1

Mean Deviation about Mode =  1/6

Step-by-step explanation:

4/11, 6/11, 8/11, 9/11, 12/11/,8/11

8/11  is twice , rest all are only once

hence Mode of Data = 8/11

Mean Deviation about Mode =  ∑ (|X - Mode|) /  N

X      X - Mode  (X - 8/11)        | X - Mode|

4/11     4/11 - 8/11 = - 4/11          4/11

6/11     6/11 - 8/11 = - 2/11          2/11

8/11     8/11 - 8/11 = 0                0

9/11     9/11 - 8/11 =   1 /11          1/11

12/11     12/11 - 8/11 =4/11          4/11

8/11      8/11 - 8/11 = 0                0

                                                11/11  = 1

∑ (|X - Mode|) = 1

N = 6

Mean Deviation about Mode =  1/6

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Answer 2

Answer:

Mean Deviation about Mode is 1/6