QUESTION 5 A banker reviews 40 loan applications a day. The acceptance rate of a loan application is 20%. Suppose that the acceptance decision is independent across applications. What is the mean and variance of the number of accepted application by the banker in a day? O a. The mean is 8 and the variance is 9. O b. The mean is 10 and the variance is 7.5. O C. The mean is 8 and the variance is 6.4. O d. The mean is 8 and the variance is 4. O e. The mean is 12 and the variance is 8.4