Question 9 Not yet answered Marked out of 5.00 P Flag question In a certain college, 33% of the physics majors belong to

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Question 9 Not Yet Answered Marked Out Of 5 00 P Flag Question In A Certain College 33 Of The Physics Majors Belong To 1 (32.68 KiB) Viewed 83 times

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Question 9 Not yet answered Marked out of 5.00 P Flag question In a certain college, 33% of the physics majors belong to ethnic minorities. If 10 students are selected at random from the physics majors, what is the probability that more than 6 and less or equal than 9 belong to an ethnic minority? a. 0.0185 O b. 0.9267 O c. 0.0732 O d. 0.9814

Question 10 Not yet answered Marked out of 5.00 Flag question A company makes electronic components for TV's. 90% pass final inspection. 140 components are inspected in one day. What is the expected value of the number that fails inspection in one day? a. 10 O b. 14 O c. 8 O d. 6

Question 11 Not yet answered Marked out of 5.00 P Flag question A company makes electronic components for TV's. 65% pass final inspection. 150 components are inspected in one day. What is the expected value of the number that fails inspection in one day? O a. 45.5 O b. 52.5 O c. 45 c O d. 50

Question 12 Not yet answered Marked out of 5.00 Flag question A die is rolled 17 times and the number of twos that come up is tallied. Find the standard deviation for the random variable X, the number of twos. a. 1.88 b. 2.75 c. 1.54 d. 3.52