Directions: Answer the following problems. You may use a calculator if you would like. 1. What is the mean of the following numbers? 10, 39, 71, 39, 76, 38, 25 2. What number would you divide by to calculate the mean of 3, 4, 5, and 6? 3. What measure of central tendency is calculated by adding all the values and dividing the sum by the number of values? 4. The mean of four numbers is 71.5. If three of the numbers are 58, 76, and 88, what is the value of the fourth number? 5. Determine the mean of the following set of numbers: 40, 61, 95, 79, 9, 50, 80, 63, 109, 42 6. The mean weight of five complete computer stations is 167.2 pounds. The weights of four of the computer stations are 158.4 pounds, 162.8 pounds, 165 pounds, and 178.2 pounds respectively. What is the weight of the fifth computer station? 7. The mean width of 12 ipads is 5.1 inches. The mean width of 8 Kindles is 4.8 inches. 8. The following data represent the number of pop-up advertisements received by 10 families during the past month. Calculate the mean number of advertisements received by each family during the month. 43 37 35 30 41 23 33 31 16 21 9. A group of customer service surveys were sent out at random. The scores were 90, 50, 70, 80, 70, 60, 20, 30, 80, 90, and 20. Find the mean score. 10. . The front row in a movie theatre has 23 seats. If you were asked to sit in the seat that occupied the median position, in which seat would you have to sit? 11. A set of four numbers that begins with the number 32 is arranged from smallest to largest. If the median is 35, which of the following could possibly be the set of numbers? 12. What is the term used to describe the distribution of a data set with one mode? 13. What is the median of the following numbers? 10, 39, 71, 42, 39, 76, 38, 25 14. What is the median score achieved by a student who recorded the following scores on 10 math quizzes? 68, 55, 70, 62, 71, 58, 81, 82, 63, 79 15. What is the mode of the following numbers? 12, 11, 14, 10, 8, 13, 11, 9