The mean and the variance of a binomial distribution with n = 20 and p =0.3 are
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Answer:
mean = 6 & Variance = 4.2
Step-by-step explanation:
Mean = np
= 20 × 0.3
= 6
Variance = npq
= 20 × 0.3 × (1-0.3)
=20 × 0.3 × 0.7
=4.2
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