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1. The student body of a large university consists of 30% Business majors. A random sample of 10 students is selected. a. What is the
1. The student body of a large university consists of 30% Business majors. A random sample of 10 students is selected. a. What is the probability that among the students in the sample at least 5 are Business majors? .2668 b. What is the probability that exactly 6 are Business majors? .2508 c. What is the probability that exactly 7 are not Business majors? .2668 2. Forty-five percent of the applications received for a particular credit card are accepted. Among the next eight applications, a. What is the probability that all will be rejected? ________ b. What is the probability that all will be accepted? ________ c. What is the probability that exactly 4 will be accepted? .2627 d. What is the probability that fewer than 3 will be accepted? .2541 3. Seventy percent of the applications received for a particular credit card are accepted. Among the next twelve applications, a. what is the probability that exactly 4 will be accepted? .2128 b. what is the probability that exactly 3 will be accepted? .2397 4. 17% of the customers that walk into ABC clothing store purchase something. Of the next 4 customers that walk into the store, what's the probability that exactly 2 customers buy something? ________ and ________
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