Questions
The mean deviation about median from the data 340, 150, 210, 240, 300, 310, 320, is
a
50
b
52.8
c
55
d
45
detailed solution
Correct option is B
Arranging the observations in ascending order of magnitude, we have 150, 210, 240, 300, 310, 320, 340. Clearly, the middle observation is 300.∴ Median= 300.Calculation of Mean Deviation34015021024030031032040150906001020∴ M.D.=1nΣdi=17Σxi−300=3707=52.8Talk to our academic expert!
Similar Questions
Following are the marks obtained by 9 students in a mathematics test:
50, 69,20,33, 53,39, 40, 65, 59
The mean deviation from the median is
799 666 8865
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