Q.

If a variable takes the discrete values α+4,  α−72,α−52,α−3,α−2,α+12,α−12,α+5(α>0) then the median is

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a

α−54

b

α−12

c

α−2

d

α+54

answer is A.

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Detailed Solution

Arrange the data as follows: α−72,α−3,α−52,α−2,α−12,α+12,α+4,α+5   Median =12 [valueof 4 thitem + valueof 5 thitem] ∴ Median =α−2+α−122=2α−522=α−54
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