Simple Probability and Complement and Sample Space

A small bag of jelly beans contains 2 lemons, 4 cherry, 1 lime, and 3 blueberry jelly beans. If Jessica chooses a jellybean without looking, what is the probability it will be cherry or blueberry?

• 3/10

• 7/10

• 1/2

• 1/4

• Answer Choice A
• Answer Choice B
• Answer Choice C
• Answer Choice D

Use the spinner to determine the probability of the given event. Find P(5 or 7)

Which shows the sample space for flipping two coins? 
H = heads, T = tails

• H, T

• HH, HT, TH, TT

• HH, TT

• HH, TT, TT, HH

What is a sample space?

• The answer to a probability problem.

• The area or perimeter of a probability.

• The total number of different results (or outcomes) you could get from an experiment.

• A probability that is always written as a percent.

• Answer Choice A
• Answer Choice B
• Answer Choice C
• Answer Choice D

What is the complement of choosing a red marble if there are 8 red marbles in a jar of 15?

• P' = 3/15

• P' = 7/15

• P' = 8/15

• P' = 15/8

A list of all possible outcomes of an experiment is called a(n)_____________________________ .

• certain

• equally likely

• sample space

A(n) _____________________ is all the possible outcomes of an experiment.

• sample space

• experiment

• trial

• event

Probability is defined as...

• the set of all possible outcomes.

• the likelihood that an event will happen.

• a tree diagram.

• the fundamental counting principle.