mean and variance of binomial distribution are 4 and 8/3 respectively find x
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BINOMIAL Distribution
Mean =np =4
Variance =np(1-p) =8/3
4(1-p) =8/3
(1-p)=8/3 ×1/4 =2/3
q=(1-p)=2/3 (p+q=1)
1--2/3 =P
P=1/3
np =4
n=4×3=12
Verification
npq =12 ×1/3 ×2/3 =8/3
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