Compound Probability

4 people spin the spinner. If the first 2 spins land on blue, what is the THEORETICAL probability the 3rd spin will land on blue?

• 1/4

• 1/16

• 1/8

• 1/2

Tags

CCSS.HSS.CP.A.5

The probability that a person in a certain town has blue eyes is 2 put of 5. A survey of 450 from that same town was taken. How many people would be expected to have blue eyes?

Tags

CCSS.7.SP.C.6

The table shows the number of each colored candy Melissa has in a bag. Without looking, she pulls a red piece of candy out of the bag. If Melissa keeps the red piece of candy out of the bag, what is the probability of drawing a yellow piece of candy out of the bag?

• 2/19

• 5/19

• 3/19

• 3/20

Tags

CCSS.7.SP.C.6

A restaurant staff made sandwiches. Each sandwich had either sourdough or wheat bread, either salami or roast beef, and either cheese or no cheese. The staff made an equal number of each type of sandwich. The sandwiches were placed on a tray. Without looking, Lee will choose a sandwich. What are the chances that Lee will get a sandwich with roast beef?

• 1/8

• 1/6

• 1/3

• 1/2

A die is rolled 50 times. It lands on an odd number 20 times. How does the experimental probability differ from the theoretical probability?

• The experimental probability is 10 times the theoretical probability.

• The experimental probability is 4/5 of the theoretical probability.

• The experimental probability is 1/10 of the theoretical probability.

• The experimental probability is 5 times the theoretical probability.

Jeff dropped 5 pennies on the floor. What is the probability that all the pennies will land tails facing up?

• 1/32

• 1/5

• 1/25

• 1/10

Tags

CCSS.7.SP.C.7B

To keep its opponents off guard, a football team will randomly choose between a passing and running play on its next three plays. The tree diagram shown represents the sample space for the plays, where P represents passing and R represents running.

How many outcomes are there two or more running plays?

Tags

CCSS.7.SP.C.8B

Four cards are placed face down. James chooses one of the cards and does NOT replace the card. The cards are then shuffled and James chooses another card. What is the probability of Mia choosing the S card first and then the R card?

• 1/4

• 1/3

• 1/8

• 1/12

Jasmine rolls two dice (fair number cubes), each labeled 1 through 6. What is the probability that the SUM of the two numbers is 6 or less?

• 5/18

• 5/12

• 5/6

• 5/36

Debbie wants to pick an outfit for her friend's birthday party. When she goes to the mall, she can choose from 4 pairs of jeans, 3 shirts, and 3 pairs of shoes. How many different outfits can Debbie have to choose from?