SOLUTION: In a jar of ten beads, seven are red and three are blue. A bead is drawn from the jar five times with replacement. What is the probability of seeing exactly 2 blue beads?
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Question 747903: In a jar of ten beads, seven are red and three are blue. A bead is drawn from the jar five times with replacement. What is the probability of seeing exactly 2 blue beads? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! In a jar of ten beads, seven are red and three are blue. A bead is drawn from the jar five times with replacement. What is the probability of seeing exactly 2 blue beads?
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"With replacement" implies you have a binomial problem.
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n = 5 and p(blue) = 3/10
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P(x = 2) = 5C2*0.3^2*0.7^3 = binompdf(5,0.3,2) = 0.3087
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Cheers,
Stan H.
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