PROHIE
The mean and variance of binomial
probability distribution are 6 and 4
respectively
. Number of trials 'n' is
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The mean and variance of Binomial Distribution are 6, 4. Then the parameters of the distribution are
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Correct option is
D
18,
3
1
Mean =np
=6
Variance =np(1−p)
=4
Therefore 4=6(1−p)
1−p=
3
2
p=
3
1
Therefore
n=6(3)
=18
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