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scan0099 - J 5 r 33 wm‘v-rx\M M15310 TEST 1 PAGE 4 OF 7...

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Unformatted text preview: J 5 r 33'? wm‘v-rx \M M15310 TEST 1 PAGE 4 OF 7 PRINT YOUR NAME HERE "$3 "3 ‘3 U" ’ - W“: 3‘ l LONGER QUESTIONS. FOR THESE QUESTIONS WHEREVER THERE IS A NUMERICAL l ANSWER YOU NEED TO SHOW HOW YOU ARRIVED AT IT. YOUR SCORE WILL BE DETERMINED BY YOUR PRESENTATION OF YOUR METHOD. ”—1. Suppose we are given the following information : 3* (1) 10% of all adults belong to a health club E (2) 20% of all adults exercise regularly. (3) 8% of all adults both belong to a health club and exercise re ularly. Let {H} denote the event that an adult belongs to a health club {E }denote the event that an adult exercises regularly. .ffi _ :3 if" 331‘) ”I" a "3 it'll}: v ~ 3 films? 22.. n3 ;5‘ :z't. <:.‘~r'=’;i~‘4ii«‘é‘»-'~i“”' r. Waffle w (c) What is the probability that an adult exercises regularly and does not belong to a health Club? P( E m H ). :2 f} r - figgfl ,5 f} (d)What is the probability that an adult either does not belong to a health club or he does not exercise _'ij regularly? P(E UH ) WA "3/ ‘1‘; H: w a. \l 2* 3: A; j at? F 4:3 1 T I: (e) What is the probability that someone either belongs to a health club or exercises regularly? .: i.e., P({ H mi} u {Em H}? .; m \f’ :7 ‘ E ' ‘“ ” ...
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