SOLUTION: THE PROBABILITY OF A STUDENT AT A PARTICULAR UNIVERSITY BEING FEMALE IS 0.57. 12 STUDENTS AT THIS UNIVERSITY ARE SELECTED AT RANDOM (INDEPENDENTLY OF EACH OTHER. WHAT IS THE PROBAB

Question 682020: THE PROBABILITY OF A STUDENT AT A PARTICULAR UNIVERSITY BEING FEMALE IS 0.57. 12 STUDENTS AT THIS UNIVERSITY ARE SELECTED AT RANDOM (INDEPENDENTLY OF EACH OTHER. WHAT IS THE PROBABILITY THAT 3 OF THEM ARE FEMALE?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
THE PROBABILITY OF A STUDENT AT A PARTICULAR UNIVERSITY BEING FEMALE IS 0.57. 12 STUDENTS AT THIS UNIVERSITY ARE SELECTED AT RANDOM (INDEPENDENTLY OF EACH OTHER. WHAT IS THE PROBABILITY THAT 3 OF THEM ARE FEMALE?
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Binomial Problem with n = 12 and p(female) = 0.57
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P(x = 3) = 12C3*0.57^3*0.43*^9 = binompdf(12,0.57,3) = 0.0205
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Cheers,
Stan H.
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