Dlrectlons: Choose the letter of the best answer. Write the chosen letter on a sepdm'e sheet of paper. 1. Under the curve. the area to the right of the mean is - A. 30% B. 47.7% c. 50% D- 68% 2. if the mean and standard deviation of a continuous random variable that is normally distributed are 10 and 3, respectively. nd an interval that contains 99.7% of the distribution. A. [7.19] B. [4.16] c. [1,19] D. [1.16] 3. Suppose that the distribution of data about the number of deaths of COVlD 19 positive has a mean of 45 and a standard deviation of 18. How many standard deviations away from the mean is a value of 81? A. lt is one standard deviation above the mean. B. it is two standard deviations above the mean. C. it is one standard deviation below the mean. D. it is two standard deviations below the mean. For items 4-5, refer to the following: A bakeshop owner determines the number of boxes of pandesal that are delivered each day. He studied the flow of his sales by recording the number of boxes of pandesal delivered for the entire month. The probability shown below was the result of his data gathering where x is the number of boxes sold each day with each corresponding probabilities, P(x). um\" um 4. What is the average number of boxes of pandesal delivered each day? A. 35.5 B. 37.1 C. 37.6 D. 38.5 5. What is the variance of the distribution? A. 1.66 B. 1.50 C. 1.29 D. 1.14