Name______Date______Class______
Probability and Statistics
Unit Test Review
Original content Copyright © by Houghton Mifflin Harcourt. Additions and changes to the original content are the responsibility of the instructor.
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Name______Date______Class______
1.Kathleen rolled a number cube that has sides labeled 1 to 6. What is the probability that she rolled a 2 or a 4?
AC
BD
2.A bag contains 10 red marbles, 15 green marbles and 15 blue marbles. If Dashawn draws a marble from the bag, what is the probability that it is a red marble?
AC
BD
3.Kendra flips a coin 3 times. What is the probability that she flips tails all 3 times?
AC
BD
4.The probability that John receives junk mail is 11 percent. If he receives
94 pieces of mail in a week, about how many of them can he expect to be junk mail?
A5C15
B10D20
5.Gene made a two-digit code. The first digit is odd. How many possible codes can he choose from?
A5C50
B15D100
6.Aurelio can choose between 3 pairs of pants and 4 shirts. How many different outcomes are in the sample space?
A7C34
B12D81
7.A classroom has 7 blue chairs, 5 green chairs, 18 red chairs and 9 yellow chairs. If a chair is selected at random, which color is most likely to be chosen?
AblueCred
BgreenDyellow
8. Gisele spins a spinner that has equally sized yellow, green, blue and red sections. What is the probability that Gisele spins orange?
A0C
BD
9.The experimental probability that Daria will win a game is . If she plays the game 80 times, how many times can she expect to win?
A10C30
B20D40
10.Jackson flipped a coin ten times. He flipped heads 4 times and tails 6 times. What is the experimental probability that Jackson will flip heads on his next flip?
AC
BD
11.Melissa rolls two number cubes, each with sides that are labeled 1 to 6. What is the probability that both number cubes show a 1?
AC
BD
Original content Copyright © by Houghton Mifflin Harcourt. Additions and changes to the original content are the responsibility of the instructor.
1
Name______Date______Class______
Probability and Statistics
Original content Copyright © by Houghton Mifflin Harcourt. Additions and changes to the original content are the responsibility of the instructor.
1
Name______Date______Class______
12.A sandwich shop offers 3 types of bread and 4 types of meat. How many different sandwiches consisting of 1 type of bread and 1 type of meat are possible?
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13.The probability that Doreen wins a game of chance is . Doreen plays the game
300 times, how many times can she expect to win the game?
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14.Tyler’s Survey Results
Eye ColorBrown / Blue
Hair Color / Brown / 9 / 5
Blonde / 12 / 14
Tyler recorded the hair color and eye color of students walking in the hallway outside her homeroom. What is the experimental probability that the next student she sees will have blue eyes?
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15.Brianna rolls a number cube that has sides labeled 1 to 6 and flips a coin. Write the list of possible outcomes.
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______
______
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16.Maria randomly selects a number from the list of numbers below.
56, 90, 88, 76, 12
What is the probability that she selects an even number?
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17.Kelly’s Experimental Outcomes
Trial / Outcome1 / 3, H
2 / 3, T
3 / 4, T
4 / 2, H
5 / 5, T
Kelly conducted an experiment. In each trial she flipped a coin and rolled a number cube that has sides labeled 1 to 6.
The results are shown above. What is the experimental probability that her next flip will be tails?
______
18.Colleen wrote each of the letters A through Z on a separate piece of paper and put them in a hat. If she randomly selects a piece of paper from the hat, what is the probability that the letter on the piece of paper will be a vowel
(A, E, I, O or U)?
______
19.Divya planted a garden with equal numbers of roses, daffodils, and tulips. If she randomly selects a flower, what is the probability that it is a lily?
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Original content Copyright © by Houghton Mifflin Harcourt. Additions and changes to the original content are the responsibility of the instructor.
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