SOLUTION: A science class consists of 40 students, 18 female and 22 male. Three students are selected at random, one at a time, to participate in a experiment (selected in order without re

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Question 1184347: A science class consists of 40 students, 18 female and 22 male. Three students are selected at random,
one at a time, to participate in a experiment (selected in order without replacement).
(a) What is the probability that a male is selected, then two females?

(b) What is the probability that a female is selected, then two males?

(c) What is the probability that two females are selected, then one male?

(d) What is the probability that three males are selected?

(e) What is the probability that three females are selected?


Answer by ikleyn(52803) About Me  (Show Source):
You can put this solution on YOUR website!
A science class consists of 40 students, 18 female and 22 male. Three students are selected at random,
one at a time, to participate in a experiment (selected in order without replacement).
(a) What is the probability that a male is selected, then two females?
(b) What is the probability that a female is selected, then two males?
(c) What is the probability that two females are selected, then one male?
(d) What is the probability that three males are selected?
(e) What is the probability that three females are selected?
~~~~~~~~~~~~~~~ 

(a)  P(MFF) = %2822%2F40%29%2A%2818%2F39%29%2A%2817%2F38%29


(b)  P(FMM) = %2818%2F40%29%2A%2822%2F39%29%2A%2821%2F38%29


(c)  P(FFM) = similar to (a) and (b).


(d)  P(MMM) = %2822%2F40%29%2A%2821%2F39%29%2A%2820%2F38%29


(e)  P(FFF) = similar to (d).

Solved.