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ew History Bookmarks Window Help moodle C Cobleskil Moodie My Courses brary Calendar CobyNe Academics Search cou Home > My courses MATH-125-40002-201712> Topic 2: sections 34,42, 43,44 Online Exam 2: sections 3.4,42,43,44 Question 6 Not yet answered Points out of 10.00 P Flag question Quiz Use the following resuits from player challenges to referee calls in the first U.S. Open tennis tournament to use the Hawk-Eye electronic instant replay system. Male player Female player Challenge Accepted 201 126 Challenge Rejected 288 224 Finish attens f one of the challenges is randomly selected,find the probability of getting a challenge that was made by a male player or not rejected Select one O a.0.860 b. 0.733 Time left 0:4 c. 0.202 d, 0.915 e, 0.510 Previous page Next page 26 3 5

Explanation / Answer

6) P(male player or not rejected) = (201+288+126)/(201+288+126+224)

= 615/839

= 0.733 (option b)

5) P(all do not cintain errors) = Number of ways of selecting 3 from 48 that dosent contain errors/Total number of ways of selection possible

= 48C3/59C3

= 0.5320 (option d)

2) Z score = (X - mean)/standard deviation

Z score of 42.5 = (42.5 - 47)/9 = -0.5

Z score of 2.5 = (2.5 - 4.2)/1.2 = -1.42

Z score of 427.2 = (427.2 - 444)/42 = -0.4

Score with highest relative position = 427.2 (option d)

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