1. Five students were asked how many songs that they have on their portable music players. What is the median number of songs? Number of songs on students' portable music players Student A Student B Student C Student D Student E 6687 3438 4398 8920 7274 a. 6687 C. 7231 b. 6143 d. 6567 2. Main Street Bakery sold 14 wedding cakes in the past week for the following prices: . 7 cakes for $120.00 each; . 4 cakes for $300.00 each; and . 3 cakes for $200.00. What is the mean cost per cake? a. $206.67 C. $44.29 b. $188.57 d. $880.00 3. Students' final marks in a science class are calculated as follows: . lab work is worth 35%; . assignments are worth 40%; and . tests are worth 25%. Benoit earned 71% on his lab work, 84% on his assignments, and 67% on his tests. What is his final mark? a. 74% C. 71% b. 73% d. 75% 4. A tourist fishing boat had 12 tuna fish caught by clients in one day. The weights of the fish, in pounds, were: 36, 34, 34, 38, 50, 28, 36, 34, 29, 37, 29, 35. What is the trimmed mean for the weight of the fish? a. 33.6 C. 32.1 b. 35 d. 34.2 5. Out of a class of 27 students, Steven had the 3rd highest mark on his essay. What is his percentile ranking? a. 89th C. 99th b. 47th d. 8th 6. Anita competed in long jump at a track and field tournament. She had the 19th-longest jump. What percentile ranking is this? a. 63rd C. 60th b. 67th d. Not enough information to calculate.1. Erik wants to know the average height of players on the senior boys' basketball team. The players of the starting line-up have the following heights in centimetres: 205,21 1,214,2101 215 a] Calculate the mean, median, and mode. 13] Which measure of central tendency better represents the average height? Explain your reasoning, A corrununity theatre group in Winnipeg, MB, is staging a presentation of Hamlet, Attendance over a 10-day period is shown in the following table. Attendance at performances of Hauler Wednesday a] What outlienfs) are present in this data set? Suggest a reason for any outliers. b] Calculate the arithmetic and trimmed means. c] Which measure of central tendency do you think best reects the attendance at the performance? 4. Joel is an insulation contractor. The cost ofhis services depends on the size of the rooms and the quality of the insulation used. In one month, he completed projects that had the following costs: $2390.00, $2196.00, $2400.00, $2215.00, $2015.00, $4820.00 $2020.00, $2315.00. $2332.00 What is the mean cost of his services? Consider any outliers. 5. The length ofcommercial breaks on TV stations is measured. If Green Channel has commercial breaks in the 42nd percentile and there are 22 stations with longer breaks. how many TV stations are being monitored? The stations are ranked from shortest to longest. 6. Out of 1 19 competing cities, Blue River ranked in the 20th percentile for their amount of green space. such as parks and gardens. How many cities have more green space? The nal marks for Ms. Smith's drama class are calculated as follows: ' voice assignments are worth 30%: - movement is worth 30%: and ' the final presentation is worth 40%. Carol has the following marks: ' 84% on voice assignment #1; ' 79% on voice assignment #2; - 59% on movement; and ' 91% on the final presentation. What is her final mark. assuming the two voice assignments are equally weighted? Juro is applying for an interior design program at a local art institute. He received a score of 39x'450 on his portfolio. The program accepts students in the 80th percentile and above. and J uro was accepted at the 35th percentile. The school indicated that it had 1380 applicants. a] What is Juro's percentage on his portfolio? In] How many classmates will Juro have in the program? c] Is it possible to calculate the lowest portfolio mark that was accepted to the program? Why or why not? Is it possible that Juro's mark was the lowest one accepted? 1. Find the mean, median, and mode for the following data set: $0.65, $0.39, $3.60, $0.44, $0.61, $3.38, $1.771, $0.25, $2.38, $3.20, $3.75, $3.53 2. Christine charges $14.00 per dog during her summer dog walking business. Using the table below that shows the number of dogs walked over one week, calculate her mean and median earnings per day. Number of dogs walked in one week Number ordugs 9 1 a 5 Thursday.r 0 Friday 4 '1' 3. The cost of installing solar panels depends on the size of the installment. A contractor has installed: - 3 solar panels at $1500.00 each: ' 7 solar panels at $2900.00 each: - 5 solar panels at $1750.00 each: and ' 1 solar panel at $5000.00. What is the mean charge per installation? 7. Fresh Taste magazine published a ranking ofthe top 50 restaurants in British Columbia IfBrog's Restaurant ranked in the I94th percentile, how many restaurants received a higher ranking than Brog's'? a. 5 c. 1 b. 2 d. 3 8. There are 255 scores below the \"lth percentile in a sample. How many total scores are in the sample? a. 378 c. 335 b; 364 d. 359 9. What is the Smith family's mean heating bill for the winter months? Heating bill was $95.90 $85.02 $39.25 March $94.47 a. $91.90 C. $9140 bi $97.40 (1. $9414? 10. A trimmed mean: omits the values at the lower end ofthe data set. omits the values at the upper and lower ends of the data set. omits the values at the upper end ofthe data set. includes all values in the data set. F-F' paw