What is the probability that we select 2 or 3 females? How exactly do you do par

Question

What is the probability that we select 2 or 3 females? How exactly do you do part D.

Consider a lake with a population of bass living in it. The population has 2,000 males and 1, 400 females; this population is big enough that we can consider samples taken from it to be samples with replacement. Provide all answers to the closest 0.0001 - if we randomly select 7 fish from the population... What is the probability that we select only males? p(all m) = _____ What is the probability that we select 4 males and 3 females? p(4m, 3f) = _____ What is the probability that we select more than 3 males? p(>3m) = _____ What is the probability that we select 2 or 3 females? p(2f or 3f) = _____

Explanation / Answer

d) P(select 2 or 3 women) = P(select 2 women) + P(select 3 women)

                                         = 1400C2 * 2000C5 / 3400C7 + 1400C3 * 2000C4 / 3400C7

                                         =979300 * 265335665000400/ 1035709034821252640200     +

                                           456353800 * 664668499500/ 1035709034821252640200

                                       

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