# 351a1 - Math 351 W. T. Kiley Exam 1 1_5, October 2009...

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Math 351 W. T. Kiley Clearly show necessary to ll0)t. You roll- 5 - \ ^+ I ^^^! 1 Tuzba a) P(lls your work and answers in the do the arithmetic. Fol-l_ow the dice. Find the probabilities is a 4; b) .at l_east 4 are a / (<.J.\ 4f tr't 6/ Exam 1 October 1_5, space provided. It Honor Code. that: 1. 2009 is not h\ ttD r"j p (lG>,1) , F(Ns=f) r Pnvs =s) ' You draw 5 cards, wi-thout replacement. Find the probabirities that: exactly one is a heart; b) at l-east one is a heart. >/) = l-P(n/s=A) ,:ef , 5 rz C J) ; Ob'd-z /r/t-n)= ( tt t/i*e( 5 fnsz; .,?.f/ ; ;"/r*4- ttd 3. A_ famity has 2 chil-dren. Find the probability that both are boys, given rhat: - a) the youngest is a boy; b) at l_east one is a boyrT 4) B= t(6,6),rc,8)1 ,uPftln =l; I ,il 8 = {G,F\ rc, 5), @,at b P(G) tr I tr) 4. Room A contains 2 women and 5 men. Room B contaj-ns ? women and 3 men. llul Find the probability that you choose a woman. if

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## This note was uploaded on 10/27/2010 for the course MATH 351 taught by Professor Moumen,f during the Spring '08 term at George Mason.

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351a1 - Math 351 W. T. Kiley Exam 1 1_5, October 2009...

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