Math 6: 11-1: Simple Probability

Front

What is probability?

Back

Probability is a measure of how likely an event is to occur, expressed as a number between 0 and 1.

Front

What does a probability of 0 mean?

Back

A probability of 0 means that the event cannot happen.

Front

What does a probability of 1 mean?

Back

A probability of 1 means that the event is certain to happen.

Front

How do you calculate probability?

Back

Probability = (Number of favorable outcomes) / (Total number of possible outcomes).

Front

What is the probability of choosing a black hat from 6 hats if there is 1 black hat?

Back

1 out of 6.

Front

If there are 8 sections on a spinner and 2 are yellow, what is the probability of landing on yellow?

Back

2/8 or 1/4.

Front

What is the probability of spinning red or green if there are 4 red, 2 green, and 2 blue sections?

Back

2/3.

Front

In a bag with 3 red marbles, 2 blue, 4 green, and 1 yellow, what is the probability of pulling a red marble?

Back

3/10.

Front

What is the probability of choosing a red ball if there are 5 red balls and 7 other balls?

Back

5/12.

Front

What is an event in probability?

Back

An event is a specific outcome or a set of outcomes of a random experiment.