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Title: A multiple choice test has 30 questions, and each has four possible answers, of which one is ... Post by: kkhh on Mar 3, 2018 A multiple choice test has 30 questions, and each has four possible answers, of which one is correct. If a student guesses on every question, find the probability of getting exactly 6 correct.
A) 0 B) 144.9646 C) 0.14546 D) 104.72847 Q. 2 x = 38, n = 50, 90 level A) 0.683 to 0.837 B) 0.668 to 0.852 C) 0.642 to 0.878 D) 0.661 to 0.859 Q. 3 The repair costs for five cars which were crashed by a safety testing organization were as follows: 100, 120, 180, 220, and 130. Find the mean cost of repair. A) 170 B) 140 C) 150 D) 160 Q. 4 x = 33, n = 80, 99 level A) 0.305 to 0.52 B) 0.254 to 0.571 C) 0.271 to 0.554 D) 0.284 to 0.541 Q. 5 In a certain college, 20 of the physics majors belong to ethnic minorities. If 10 students are selected at random from the physics majors, what is the probability that exactly 2 belong to an ethnic minority? A) 0.30199 B) 0.00671 C) 0.00007 D) 1.8 Q. 6 The average speed of cars passing a busy intersection between 4:30 P.M. and 6:30 P.M. on a Friday is 32.3 mi/h. A) Discrete B) Continuous Q. 7 The average age of the 65 students in Ms. Hope's political science class is 21 years 7 months. A) statistic B) parameter Title: A multiple choice test has 30 questions, and each has four possible answers, of which one is ... Post by: Me12345 on Mar 3, 2018 Content hidden
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