SOLUTION: In a statistics class with 15 males and 13 females, five students are selected to put problems on the board. What is the probability that: a. 3 females and 2 males are selected?

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Question 427420: In a statistics class with 15 males and 13 females, five students are selected to put problems on the board. What is the probability that:
a. 3 females and 2 males are selected?


b. all five students selected are males?


c. all five students selected are females?


d. at least one male is selected?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi

28 people in all with 15 males and 13 females



a. P(3 females and 2 males are selected) = 13C3*15C2/28C5 





b. P(all five students selected are males)= 15C5/28C5 





c. P(all five students selected are females) = 13C5/28C5 





d. P(at least one male is selected) = 1 - P(all females selected)