33. Which type of graph should not be used to represent a categorical variable? a. bargraph b. frequency table c. histogram d. pie chart Unit 1 Evaluation 69 MTHH 041 34. A small local museum doesn't charge a specic admission price; rather, a box at the entrance asks people to make a donation. One day the staff was shocked to find a $100 bill there. The table shows a total count for one day's donation, separated by denomination. Find the mean and median donation. mean: $15.2; median: $7 mean: $37.20; median: $15 mean: $15; mean: $37.20 mean: $5.54; median: $5 9-957!\" Use this information and data set to answer questions 38 40. The frequency table shows the heights (in inches) of 130 members of a choir. Height Count Height Count 60 2 69 5 61 6 70 1 1 62 9 71 8 63 7 72 9 64 5 73 4 65 20 74 2 66 18 75 4 67 7 76 1 38. Find the median and IQR. median: 68; IQR: 6 median: 66; IQR: 5 median: 67.12; IQR: 3.79 median: 16; IQR: 8 P-PP'P' 39. Find the mean. a. 58.39 inches b. 474.44 inches c. 7.65 inches d. 67.12inches 40. What percent of the singers are taller than the mean height? a. 40% b. 25% c. 43% d. 34% 41. A company's customer service hotline handles many call relating to orders and refunds. The company's records indicate that the median length of incoming calls to the hotline is 4.4 minutes with an IQR of 2.3 minutes. In an effort to speed up the customer service process. the company decides to streamline the series of pushbuttcn menus customers must navigate, cutting the time by 24 second. What will the median and IQR of the length of hotline calls become? median: 240 seconds; IQR: 138 seconds median: 240 seconds; IQR: 118 seconds median: 264 seconds; IQR: 138 seconds median: 264 seconds; IQR: 118 seconds 9-5757.\