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31 4. Time has been called on your management examination and you realize you have not even read the last four questions. Your only strategy is to randomly fill-in ovals on your answer sheet without even reading the questions. Assume there is no pattern to the answer key and each question has five answers of which only one is correct. What is the probability you will answer at least one question correctly? a. 0.2000 0.3164 0.4096 d. 0.5904 e 0.6836 A large department store finds that 28% of its customers pay with credit cards. A random sample of 10 customers is taken. What is the probability that at leasti customer pays with a credit card? 5. 0.3743 b. c. 0.4926 d. 0.9625 e. 0.9872 nEo
math   Statistics-And-Probability   
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Answer #1

At first we will develop the given data in terms of probabilities and then we solve each problem in its own manner.

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