SOLUTION: A random variable follows a binomial distribution with a probability of success equal to 0.45. For n=11, find the probability of 1 success, probability of fewer than 4 successes, p

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Question 859202: A random variable follows a binomial distribution with a probability of success equal to 0.45. For n=11, find the probability of 1 success, probability of fewer than 4 successes, probability of at least 8 successes.
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

p = .45,  n = 11

P(x = 1) = binompdf(11, .45, 1)= .0125

P(x ≤ 4) =  binomcdf(11, .45, 4)= .3971

P(x ≥ 8) = 1 – P(x ≤ 7) = 1 - binomcdf(11, .45, 7)= .061