Course 2 • Chapter 5 Proportional Relationships and Probability 55

Program: M. S. Math 2013

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Component: C02_Assessment

Grade: Course 2PDF

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1. The table shows the results of a survey asking students the season of their birthday. A student from the survey is chosen at random. What is the experimental probability that the student has a birthday during

the summer? 7.6(D)

2. A ski lodge inspects 80 skis and finds 4 to be defective. What is the experimental

probability that a ski chosen at random is defective? 7.6(I)

3. The table at the right shows the voting preferences for registered voters. Describe a simulation that you could use to model the selection of a candidate. 7.6(C)

For Exercises 4 and 5, determine the total number of outcomes that will be in each sample space. 7.6(A)

4. buying bedroom furniture if you can select one each from 7 dressers, 4 beds, 6 lamps,

and 9 night tables

5. tossing a dime, a quarter, a penny, a nickel, and rolling a number cube labeled 1–6

6. A coin is tossed 20 times. The experimental probability of the coin showing heads is

65%. How many times did the coin show tails? 7.6(E)

For Exercises 7 and 8, a bag contains 4 white beads, 6 red beads, 5 yellow beads, and 5 blue beads. One bead is selected and not replaced. Then a second bead is selected. Determine the probability of each event. 7.6(D)

7. P(blue, then blue)

8. P(white, then red)

For Exercises 9–11, use the spinner to determine each probability. 7.6(C)

9. P(even number)

10. P(2 or 3)

11. P(5, then 8) on two spins

Chapter 5 Test, Form 3A

Candidate Percent of Voters

Sanchez 45Ledo 30Carroll 15Undecided 10

Season BirthdaysFall 38Winter 27Spring 34Summer 51

8 1

5 4

27

36

17 _ 50

1 _ 20

Sample answer: Use a random number

function of a graphing calculator.

1,512

96

7 times

1 _ 19

6 _ 95

1 _ 4

1 _ 2

1 _ 64

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Course 2 • Chapter 5 Proportional Relationships and Probability56

Program: M. S. Math 2013

Vendor: Six Red Marbles

Component: C02_Assessment

Grade: Course 2PDF

NAME ___________________________________________________ DATE ______________________ PERIOD ____________

SCORE _____________Copyright ©

McG

raw-H

ill Education. Permission is granted to reproduce for classroom

use.Chapter 5 Test, Form 3A (continued)

12. On a multiple-choice test, each question has 4 possible answers. A student does not know the answers to three questions, so the student guesses. What is the probability

that the student gets all three questions incorrect? 7.6(D)

13. One game of bowling consists of 10 frames. Elyse usually rolls 3 strikes in each game. What is the experimental probability that Elyse will roll a strike on any

frame? 7.6(I)

14. A bowl contains 7 index cards with the letter P, 9 index cards with the letter N, and 4 index cards with the letter D. Maura removes one card at random from the bowl and does not replace it. She then removes a second card at random. What is

the probability that both cards will have the letter D? 7.6(D)

15. There are 100 prize tickets in a bowl, numbered 1 to 100. What is the probability that an even numbered prize ticket will be chosen at random, not replaced, then an odd numbered prize ticket will be chosen? Does this represent independent or dependent events? Explain. 7.6(D)

Use a problem-solving model to solve each problem.

16. The table shows the results of an experiment that Jane conducted using a box of same-sized colored disks. She repeated the process of selecting one disk, noting its color, and returning it to the box. Based on experimental probability, how much more likely is it that the next disk drawn will be purple than green? 7.6(D)

Color Number of Times Selected

Yellow 18Green 9Orange 15Purple 11Blue 12

17. Derek is randomly selecting colored cubes from a bag containing 60 cubes. The table shows the number of cubes that are in the bag. How much greater is the probability of drawing a blue or red cube than drawing a yellow or orange cube? 7.6(I)

Color FrequencyBlue 13Green 25Red 7Orange 6Yellow 9

18. Lisa selects a marble from a jar containing 6 red marbles and 2 green marbles and does not replace it. She then selects a second marble. What is the probability that both marbles will be red? 7.6(D)

19. Brianna has a bag with 10 tiles marked with the numbers 1 through 10. She randomly chooses one tile from the bag, puts it back, and then she chooses another tile. What is the probability that Brianna will choose two odd-numbered tiles? Express your answer

as a percent. 7.6(D)

25 _ 99 ; dependent events; The first event impacts the second event.

3 _ 95

2 _ 65 1 _ 12

25%

15 _ 28

27 _ 64

3 _ 10

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