Question

variable (x) = 3,5,7,9,11,13 and frequency = 2,7,10,9,5,1 find mean deviation
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Answer 1

Answer:

Mean deviation = 0.5

Step-by-step explanation:

x f fx d |d|

3 2 6 -4.64 4.64

5 7 35 -2.64 2.64

7 10 70 - 0.64 0.64

9 9 81 1.36 1.36

11 5 55 3.36 3.36

13 1 13 5.36 5.36

x bar = 260/34 = 7.64

Md = xamesan|d| /N = 18/ 34 = 0.5