Simple Event, Sample Space and Complement

The likelihood that a single, specific event will occur is called - 

• sample space

• compound probability

• a complement

• simple probability

A set of all possible outcomes is known as - 

• a list

• a complement

• a sample space

• an event

In probability theory, the sum of an event (A) occurring and the same event NOT occurring (not A) is always - 

• 0

• based on the sample space

• variable

• 1

Which of the following expressions would be used to calculate the complement of an event occurring?

• P(event) - 1

• P(event 1) x    P(event 2)

• P(event)/possible outcomes

• 1 - P(event)

Which event or complement has a probability of ¼?

• P(yellow)

• P(NOT blue or orange)

• P(yellow or green)

• P(NOT green)

P(not A) = 
*Remember to simplify.*

• 6/8

• 3/4

• 2/8

• 1/4

The likelihood that an event will NOT occur is known as its - 

• complement

• sample space

• opposite

• trial

If a coin is tossed 3 times, how many possible outcomes are in the sample space?

• 6

• 8

• 3

• It depends

Which of the following methods is NOT a good tool for determining sample space?

• tree diagrams

• area models

• organized lists

• guess and check

One outcome or collection of outcomes

• simple event

• experimental probability

• theoretical probability

• fundamental counting principle