Cwwwwebassign 16598928 Notes O Ask Your T A survey was conducted by the local ch

Question

Cwwwwebassign 16598928 Notes O Ask Your T A survey was conducted by the local chapter of an environmental club regarding the ownership of alternative fuel vehicles (Arvs) among the member of the group. An APV is a vehlicle that runs on fuel other than petroleum fuels (petrol and diesel),. It was found that of the 80 members of the cub surveyed, 16 of them own at least one hybrid car, 14 of them own at least one electric car, and 4 of them own at least one hybrid and at least one electric car. (Enter your answers to three decimal places (a) If a member of the club is surveyed, what is the probability that he or she owns only hybirid cars? (b) If a member of the dlub is surveyed, what is the probablity that he or she owns no alternative fuel vehicles? Need Help? oTter pursuing a business degree at a university, 313 are enrolled in an economics course, 206 are enrolled in a Among 500 and 158 are enrolled in both an economics and a enroled in each of the following? (Enter your answers to three an economics and a mathematics course. what is the probablity that a freshman selected at random from this group is (a) an econoics and/or a mathematics course (b) exactly one of these two courses (e) neither an economics course nor a mathematics course Need Help? M 0

Explanation / Answer

Q.3 Number of member in the club = 80

Number of people who just owns hybrid cars = 16 - 4 = 12

Pr (owns only hybrid car) = 12/80 = 0.15

Owns no alternative fuel (number of such people) = 80 - (16 + 14 -4) = 54

Pr(No alternative fuel) = 54/80 = 0.675

Q.12 (a) Pr(Economis or mathematics course) = (313 + 206 - 158)/ 500 = 0.722

Pr(Economics and mathematics course) = 158/500 = 0.316

Pr(Exactly one of these courses) = (313 +206 - 158 -158)/500 = 0.406

Pr(Neither a economics nor a mathematics course) = [500 - (313 + 206 - 158)]/ 500 = 0.278

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