Probability of Simple Events Review

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, where 0 means the event cannot happen and 1 means the event is certain.

Front

What is a simple event in probability?

Back

A simple event is an event that consists of a single outcome. For example, rolling a 3 on a die is a simple event.

Front

How do you calculate the probability of a simple event?

Back

The probability of a simple event is calculated by dividing the number of favorable outcomes by the total number of possible outcomes.

Front

What is the probability of landing on red if a spinner has 4 equal sections: red, blue, green, and yellow?

Back

The probability is 1/4 or 0.25.

Front

If a spinner has 8 sections and 2 of them are green, what is the probability of landing on green?

Back

The probability is 2/8 or 1/4.

Front

What is the probability of not landing on a specific outcome?

Back

The probability of not landing on a specific outcome is 1 minus the probability of landing on that outcome.

Front

If a die has 6 faces, what is the probability of rolling a number greater than 4?

Back

The probability is 2/6 or 1/3.

Front

What is the total number of outcomes when rolling a die?

Back

The total number of outcomes when rolling a die is 6.

Front

In a bag with 10 red and 5 blue marbles, what is the probability of picking a blue marble?

Back

The probability is 5/15 or 1/3.

Front

What does it mean if an event has a probability of 0?

Back

It means the event is impossible and will not occur.