The mean deviation about median from the data 340, 150, 210, 240, 300, 310, 320, is

# The mean deviation about median from the data 340, 150, 210, 240, 300, 310, 320, is

1. A

50

2. B

52.8

3. C

55

4. D

45

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### Solution:

Arranging the observations in ascending order of magnitude, we have 150, 210, 240, 300, 310, 320, 340. Clearly, the middle observation is 300.

$\therefore$ Median= 300.

Calculation of Mean Deviation

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