Q.
If the observations 2,4,8 and 16 occur 8, 6,4 and 2 times respectively, then the geometric mean of the observations is
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a
8
b
42
c
4
d
None of these
answer is C.
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Detailed Solution
∵ we knowGeometric mean =x1×x2×…×xnn=28×46×84×16220=28×212×212×2820=24020=24020=22=4
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