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Q.

In a binomial distribution the mean is 10 and the standard deviation is 5  . Then the distribution is

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a

(14+34)16

b

(14+14)16

c

(12+14)16

d

(12+12)20

answer is D.

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Detailed Solution

np=10npq=5 By solving we get p=12,  q=12,  n=20 ∴  Distribution is (q+p)n=  (12+12)20
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In a binomial distribution the mean is 10 and the standard deviation is 5  . Then the distribution is