Statistics and Probability


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1 Statistics and Probability Name Find the probability of the event. 1) If a single die is tossed once, find the probability of the following event. An even number. A) 1 6 B) 1 2 C) 3 D) 1 3 The pictograph shows the number of bicyclists who participated in the Labor Day weekend bicycle race for the years ) What was the average number of cyclists who participated in the race? If necessary, round to the nearest whole number. A) 85 cyclists B) 88 cyclists C) 66 cyclists D) 76 cyclists Find the mean. If necessary, round to one decimal place. 3) 16, 4, 23, 16 A) 21 B) 14.8 C) 13.3 D) 15.3 Solve. If necessary, round answers to the nearest hundredth. 4) The following test scores were recorded for a student: 73, 61, 72, 61, 64. Find the mean, median, and mode. A) mean: 66.2 median: 64 mode: 61 B) mean: 82.8 median: 68 mode: 61 C) mean: 67.5 median: 72 mode: 73 D) mean: 66.2 median: 64 mode: 73 Find the mean. If necessary, round to one decimal place. 5) 70, 54, 70, 98, 54 A) 86.5 B) 69.7 C) 68.7 D) 69.2 Find the median. If necessary, round to one decimal place. 6) 1, 11, 24, 26, 32, 37 A) 24 B) 26 C) 25 D) 18.5 Find the mode or modes (if any). 7) 7.06, 7.41, 7.56, 7.06, 7.88, 7.99, 7.62 A) B) 7.56 C) 7.06 D)
2 Solve. If necessary, round answers to the nearest hundredth. 8) The following test scores were recorded for a student: 86, 78, 74, 74, 86, 88. Find the mean, median, and mode. A) mean: 81 median: 82 mode: 74 and 86 B) mean: 81 median: 74 mode: 88 C) mean: 82 median: 81 mode: 86 D) mean: 82 median: 82 mode: 74 The histogram shows the scores of each participant in a game from a total of 100 participants. 9) The greatest number of participants is within which category? A) B) C) D) The bar graph shows the number of tickets sold each week by the garden club for their annual flower show. 10) During which week were 19 tickets sold? A) week 3 B) week 2 C) week 1 D) week 6 2
3 The histogram shows the scores of each participant in a game from a total of 100 participants. 11) How many more participants scored than 4059? A) 19 participants B) 13 participants C) 35 participants D) 22 participants The line graph shows the recorded hourly temperatures in degrees Fahrenheit at an airport. 12) What temperature was recorded at 5 p.m.? A) 74 F B) 76 F C) 78 F D) 77 F 3
4 Use the circle graph to solve the problem. 13) There are 7000 students attending the local university. The students are asked which sport they most enjoy watching. The circle graph shows the percentage favoring each sport. 14% 4% 18% 40% 24% What percentage of students did not name Soccer or Volleyball as their favorite sport? A) 18% B) 42% C) 58% D) 24% The circle graph shows the results of the student council presidential election and the percent of the vote each person received. 14) Student Council President Ben 22% Jim 36% Lili 18% Matt 24% 200 total votes Who got the most votes? A) Jim B) Ben C) Lili D) Matt 4
5 15) Student Council President Jim 25% Ming 32% Gina 16% Lili 27% 300 total votes Who received the second largest number of votes? A) Ming B) Jim C) Gina D) Lili Use the circle graph to solve the problem. 16) The circle graph below gives the number of students in the residence halls at the state university Which residence hall has the highest number of students? A) Adams B) Evans C) Dodge D) Carver 5
6 17) A survey of the 5602 vehicles on the campus of State University yielded the following circle graph. 11% 14% 36% 8% 4% 27% Find the number of convertibles. Round your result to the nearest whole number. A) 14 B) 504 C) 4818 D) 784 Draw a tree diagram for the experiment. Then use the diagram to find the number of possible outcomes. 18) Spin the spinner once and toss a coin. A) 8 B) 4 C) 16 D) 6 Find the probability of the event. 19) If a single die is tossed once, find the probability of the following event. A 3 A) 3 B) 1 6 C) 1 2 D) 0 6
7 A dart is thrown randomly and sticks on the circular dart board shown. Assume that all sectors are the same size and that the dart does not land on a border between shaded areas. 20) Find the probability that the dart does not land on the sector numbered 3. A) 3 B) 7 9 C) D) 1 8 Find the probability of the event. 21) If a single die is tossed once, find the probability of the following event. A 3 or a 6 or a 2 A) 1 6 B) 1 3 C) 11 D) 1 2 Draw a tree diagram for the experiment. Then use the diagram to find the number of possible outcomes. 22) Choose a number, 1, 2, 3, 4, and then a vowel, a,e,i,o,u. A) 16 outcomes B) 9 outcomes C) 20 outcomes D) 5 outcomes 23) Toss two coins. A) 2 outcomes B) 3 outcomes C) 1 outcome D) 4 outcomes A deck of cards contains 52 cards. These cards consist of four suits  hearts, spades, clubs, and diamonds. Each suit contains one of each of the following: 2, 3, 4, 5, 6, 7, 8, 9, 10, jack, queen, king, and ace. Assume that one card is selected at random from a wellshuffled deck of cards. 24) Find the probability that the card is a 2, 3, or 5. A) 1 4 B) 3 13 C) 3 52 D) 1 3 7
8 Answer Key Testname: UNTITLED1 1) B 2) D 3) B 4) A 5) D 6) C 7) C 8) A 9) A 10) D 11) B 12) B 13) C 14) A 15) D 16) C 17) D 18) A 19) B 20) B 21) D 22) C 23) D 24) B 8
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