SOLUTION: if X is a random variable with B(n=4, p=1/4) distribution, then the probability X is at least 1 is?

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Question 800220: if X is a random variable with B(n=4, p=1/4) distribution, then the probability X is at least 1 is?
Answer by oscargut(2103) About Me  (Show Source):
You can put this solution on YOUR website!
P(x>=1) = 1-P(X=0)
= 1-(3/4)^4 = 1-(81/256) = 175/256

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