Course QMBLC Summer14Test Quiz2 • Question 1 Assuming a Poisson distribution, on the average, 6.7 cars arrive at the drive-up window of a bank every hour. Compute the probability that exactly 5 cars will arrive in the next hour. • Question 2 At a computer-consulting firm, the number of new clients that they have obtained each month has ranged from 0 to 6. The number of new clients has the probability distribution that is shown below. Determine the expected number of new clients per month. # of Clients Probability0 0.051 0.102 0.153 0.354 0.205 0.106 0.05 • Question 3 Assuming a binomial distribution, four percent of the customers of a mortgage company default on their payments. A sample of five customers is selected. What is the probability that more than 2 customers in the sample will default on their payments? • Question 4 If P(A) = 0.68, P(A ? B) = 0.91, and P(A ? B) = 0.35, then P(B) = • Question 5 If A and B are independent events with P(A) = 0.05 and P(B) = 0.65, then P(A|B) = • Question 6 X is a normally distributed random variable with a mean of 22 and a standard deviation of 5. The probability that X is between 9.7 and 22 is • Question 7 A random variable X is exponentially distributed with a mean of 25. What is the probability that X is between 25 and 30? • Question 8 X is a normally distributed random variable with a mean of 22 and a standard deviation of 5. The probability that X is between 17 and 27 is
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