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Question

The mean deviation of 2, 4, 6, 8, 10 about its mean is

A
4.2
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B
2.4
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C
3.4
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D
4.3
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Solution

The correct option is B 2.4
Mean(¯x)=xin=2+4+6+8+105=6 M.D=|xi¯x|n=|26|+|46|+|66|+|86|+|106|5=4+2+0+2+45=125=2.4

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