Unit 12 Quiz Review

A regular 6-sided die is to be rolled one time. What is the probability that the number 5 is rolled?

• 1/5

• 5/6

• 1/6

• 6/5

A regular 6-sided die is to be rolled once. What is the probability that a number less than or equal to 4 is rolled?

• 1/2

• 1/4

• 5/6

• 2/3

A coin is to be tossed twice. p(t, t) = ___

• 1/4

• 1/2

• 2

• 1/8

A spinner has 8 equal regions. Each region is marked with one of the following numbers: 10, 20, 30, 40, 50, 60, 70, 80. What is the probability of an even number being spun on the first roll?

• 1/8

• 1/2

• 1

• 3/8

There are 3 red marbles, 4 blue marbles, 2 green marbles, and 6 clear marbles in a burlap bag. One marble is randomly pulled from the bag. What is the probability the marble was green?

• 1/2

• 1/7

• 2/15

• 2/17

Sarah, Sammie, Victor, Vicki, and Valerie are in math group. Two students are randomly picked to be the co-leaders. What is the probability that the students picked were Sammie and Victor?

• 1/25

• 2/5

• 1/5

• 1/20

Sarah, Sammie, Victor, Vicki, Valerie are in a math group. Two students are randomly chosen to be co-leaders. What is the probability that both students' names begin with the letter V?

• 3/5 times 3/5 = 9/25

• 3/5 times 1/2 = 3/10

• 1/5 times 2/5 = 2/15

• 3/5 times 1/4 = 3/20

A store sells shirts that are either small, medium, or large. The colors are either red, blue, green, or white. What is the probability someone will select a large green shirt?

• 1/3
• 1/7
• 1/9
• 1/12

You pick a marble from this bag.
What is the probability you will choose either a black or white marble?

• 3/5
• 9/100
• 1/10
• 2/5

You roll two die.
What is the probability you will roll a 4, then roll a number less than 3?

• 1/36
• 1/18
• 1/9
• 1/6