Probability Flashcard 7th Grade 11/22/24

Front

What is probability?

Back

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

Front

What is an even number?

Back

An even number is an integer that is exactly divisible by 2, such as 0, 2, 4, 6, etc.

Front

What does it mean if an event is 'certain'?

Back

If an event is 'certain', it means that it will definitely happen, with a probability of 1.

Front

What does it mean if an event is 'unlikely'?

Back

If an event is 'unlikely', it means that it has a low chance of occurring, with a probability closer to 0.

Front

What is the probability of an event that cannot happen?

Back

The probability of an event that cannot happen is 0.

Front

What is the probability of an event that is guaranteed to happen?

Back

The probability of an event that is guaranteed to happen is 1.

Front

How do you calculate the probability of an event?

Back

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

Front

What is the complement of an event A, denoted as P(not A)?

Back

P(not A) is the probability that event A does not occur.

Front

If a spinner has 4 equal sections, what is the probability of landing on any one section?

Back

The probability of landing on any one section is 1/4.

Front

What is theoretical probability?

Back

Theoretical probability is the probability calculated based on the possible outcomes in a perfect scenario.