Probability Flashcard

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 is the probability of an event that is certain to happen?

Back

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

Front

What is the probability of an event that is impossible?

Back

The probability of an event that is impossible is 0.

Front

How do you calculate the probability of a single event?

Back

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

Front

If a die has 6 sides, what is the probability of rolling a 1?

Back

The probability of rolling a 1 is 1/6.

Front

What is the probability of rolling an even number on a die?

Back

There are 3 even numbers (2, 4, 6) on a die, so the probability is 3/6 or 1/2.

Front

In a jar with 10 green, 7 red, and 3 blue marbles, what is the probability of pulling a red marble?

Back

The probability of pulling a red marble is 7/20.

Front

What is the probability of picking a blue or red flower from a total of 10 flowers, 5 of which are blue or red?

Back

The probability is 5/10 or 1/2.

Front

What is the probability of rolling a 3 or a 6 on a die?

Back

The probability is 2/6 or 1/3.

Front

How many letters are in the word 'ALGEBRA'?

Back

There are 7 letters in the word 'ALGEBRA'.