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33. Binomial Distribution
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Q8 of 99 Page 33

If in a binomial distribution n = 4 and find q.

Given:


n = 4


p(x=0)=


q=?


P(x=r)= nCr pr qn-r


p(x=0)= 11q4





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6

If the mean and variance of a random variable X having a binomial distribution are 4 and 2 respectively, find P (X = 1).

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If the mean and variance of a binomial variate X are 2 and 1 respectively, find P(X > 1).

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If the mean and variance of a binomial distribution are 4 and 3 respectively, find the probability of no-success.

10

If for a binomial distribution P (X = 1) = P (X = 2) = α, write P (X= 4) in terms of α.

Questions · 99
33. Binomial Distribution
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