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If a variable takes value 0,1,2,3,....,n...

If a variable takes value 0,1,2,3,....,n with frequencies 1,C(n,1),C(n,2),C(n,3),...,C(n,n) respectively, then the arithmetic mean is

A

pq

B

np

C

nq

D

`np^(2)`

Text Solution

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The correct Answer is:
B
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