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Test3Back - 10 Amy gets her exercise by playing tennis and...

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Unformatted text preview: 10. Amy gets her exercise by playing tennis and running. On any given day, the probability that Amy plays tennis is 30%. The probability that Amy plays tennis and runs a mile IS 10% The probability that she plays tennis given that she runs a mile is 20%. What is the probability that she runs a mile? [Hint: this question is giving you more information than you need. ] A- immis 190s): . 5 12(5) x F045)“ ,1? (#053 [5:MILE 19??? P054115); .10 PCEDX .m 26 .IO PfAlB 9?») ‘= l 1. Continuing with the information in quespnjzo 10: What 1s the probability of ying tennis givenéat she hasn’t run a mile? [This question is more diffith than question 10 In the sense that it requires one to do a couple of steps. ] Pole) 301/125): 24 PCME’DW76Aflfibe We P65) .5 *(3)=,5 12 Continuing with the information in question 10: What IS the probability 3211035 Amy5 won ’ft exer ise on a glven day? [This question may require a couple steps but all of [steps are very basic, especially if you answered question 10. Don t over think it. ] lv— Pr—(AUB) 2— 370911353) F(A{lbj l 3+ 5—10) am a; 14. How does an event differ from an 'outcome? OUTwM‘e—é ABE 17—11? 55616 M” MUTUAL/\JI’ "XCeuStt/E: 25; WW '00 We“ EVENTS asp/gm MADELJPOFWTCOMé W W by 136 .70 15. There are 146 people' In éa room. What 15 the probability that someone else in the room shares your birthday? (Ignore leap years.) [_ 34? H4 36? 115 :1:pr fl L210 WHEN-:3 365 (I: Tot) W (AH 0F THE; 16_. In a deck of cards, are kings and face cards independent? Please explain why 1n mathematical manner. N0 V VCA>7é gasps) (g: 33:?” 119/517? 1 17. Event A is that the top card in a deck is a Jack. Event B is that the bottom card in a deck is a Queen. Are Event A and Event B mutually exclusive? No need to explain. No. 18. Event A is that the top card in a deck is a Jack. Event B is that the bottom card in a deck is a Queen. Are Event A and Event B independent? No need to explain. NO, ...
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