Name Date 8. A high school theater production had an admission price of $10. During the show, 876 people paid to enter. a. What is the range of the distribution of admission fees? b. What is the standard deviation of the distribution of admission fees? c. If the standard deviation of a distribution is 0, must all of the data be the same number? Explain. 9. A class of 31 students averaged 82 on a recent exam. Two students were absent and took the exam the next day. The two students averaged 88 on their exam. What was the average for the entire class, including the two students who took the test one day later? 10. The number of cars owned by households in the Lakebridge Condominium Complex is shown in the table. Number of x; f (x; - x )2 f Cars Owned Frequency, f X ; - x ( x ; - x ) 2 0 22 C. h. 1. P. 1 43 d. 1 . m. q. 2 52 e . J. n. r. 3 3 f . K. O. S . TOTAL n = 120 g. t. a. Find the mean number of cars owned per household. b. Fill in the missing entries in the table to the nearest hundredth. c. Find the standard deviation of the distribution to the nearest hundredth. 12. A distribution consists of 30 scores of 10 and 30 scores of 20. Find the ratio of the range to the standard deviation. 13. Create a distribution of five numbers that has range 10, maximum score 20, and mean 12