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 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 spinner has 8 equal sections and 3 are blue, what is the probability of landing on blue?

Back

P(blue) = 3/8.

Front

What is the probability of flipping a coin and getting heads?

Back

P(heads) = 1/2.

Front

In a bag with 4 red, 5 blue, and 1 green marble, what is the probability of picking a blue marble?

Back

P(blue) = 5/10 or 1/2.

Front

If there are 10 candies in a bowl and 2 are chocolate, what is the probability of selecting a chocolate candy?

Back

P(chocolate) = 2/10 or 1/5.

Front

What is the probability of selecting a letter from the word 'MATH' that is not 'M'?

Back

P(NOT M) = 3/4.

Front

If a box contains 3 apples, 2 bananas, and 5 oranges, what is the probability of choosing a fruit that is NOT an apple?

Back

P(NOT apple) = 7/10.