Probability and Statistics Quiz

What is the probability of randomly selecting an odd number from the numbers 1-15?

• 1/3

• 1/2

• 7/15

• 8/15

Tags

CCSS.7.SP.C.7B

Twelve students have an equally likely chance of being selected in a drawing at school. Eight are 7th graders and four are 8th graders. What is the probability that an 8th grader will be selected?

• 1/3

• 2/3

• 1/4

• 1/2

Tags

CCSS.7.SP.C.7B

The probability of a spinner landing on yellow is 1/4. What does 3/4 represent?

• P(yellow)

• P(blue)

• P(yellow')

• P(purple and blue)

Tags

CCSS.7.SP.C.5

Marty can go to one movie on either Friday or Saturday. He will be able to choose either a comedy or an action movie. Which list shows all the possible outcomes of one movie on one day?

• Comedy, Friday; Comedy, Saturday; Action, Friday; Action, Saturday

• Comedy, Action; Friday, Saturday

• Action, Friday; Action, Saturday

• Comedy, Friday; Action, Friday

Tags

CCSS.7.SP.C.8B

In a game, the player wins if he rolls a 4 on a number cube. If the number cube is rolled 24 times, what is a reasonable prediction for the number of unsuccessful rolls?

• 6

• 18

• 20

• 24

Tags

CCSS.7.SP.C.6

A health study of 540 adults found that only 7 in 20 adults get enough sleep each night. Based on the results of the sample, how many adults got enough sleep?

• 27

• 35

• 189

• 202

Tags

CCSS.6.RP.A.3B

What is the probability that both coins land on heads when two coins are flipped?

• 1/4

• 1/2

• 1/3

• 1/8

If 3 out of the first 10 students at a school assembly were wearing spirit wear, how many students out of 400 would be expected to wear spirit wear?

• 120

• 100

• 80

• 60

Tags

CCSS.7.RP.A.3

What is the probability of drawing two yellow marbles consecutively from a bag containing three green and two yellow marbles, replacing the first marble before drawing the second?

• 1/25

• 1/5

• 2/25

• 1/10

When two number cubes are rolled sequentially, what is the probability that the first shows a five and the second shows an even number?

• 1/12

• 1/18

• 1/36

• 1/6