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StatsQuiz2-TimHopkins

# StatsQuiz2-TimHopkins - EGN 3443 Probability& Statistics...

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Unformatted text preview: EGN 3443 Probability & Statistics for Engineers Quiz 2 (10 points) Open book/notes, 20 minutes September 24, 2008 Name: 1/34 Hwiﬂme U#: mwms‘iwﬁ Good luck! Mama»mmwmvm...w.wmw . .4 ,-,- Suppose that our EGN 3443 class has 78 students of which 43 have a, VISA credit card7 25 have a Mastercard, and 9 students have both cards. There are 63 male students of which 58 prefer domestic beer over imported." 73% of the female students prefer Maybelline lipsticks over Lancorne. All students like pizza. None students speak Russian. Randomly select a student. a) Calculate the probability that the selected individual doesn’t have a VISA. (2 points) 43 bum {firs/t _ 3E“ — '1, / (\AUtFMn ”lZ‘JrB» 6ft?! 0%??? gm“ wig/l : 13\$ 7? 'Lll‘g’ b) Calculate the probability that the selected individual has a Mastercard but not a VISA. (2 points) ZS-‘cl LON/L (17/3 {Ki gm, MfﬁﬁlithCﬁwoPg’! 2 [é : {3:} 1 29439; c) Calculate the probability that the selected individual has exactly one type of credit cards. {5’ points) 34; am. a“), V1154 344/631 5‘23 4%.: z 4%; ”A / 6’ Ll Av‘r 0" ii; Masi‘trm-mi a! l/tm/t €333,ng d) Calculate the probability that the selected individual doesn’t have a credit card. {2 points) 2 All L1 (AI/4,. 0”? H Vﬁ'f‘ﬂf it; {4%, M a Mr! /7 ,7 0? lam/«W bafﬂe 73: ZL/‘Ho Sol lAm/ci a C(nle‘iﬁwf 73‘571‘ I4 J53 {MT have \$66; e) Estimate the probability that someone from this class will become the President of the United States in the next 50 years. {1 point) 75 : , 0000002555 W 305; 2143/ [1/03 a : ,Ooeolsé /§ ...
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