Basic Probability

Front

What is probability?

Back

Probability is a measure of the likelihood that an event will occur, expressed as a number between 0 and 1.

Front

What is the formula for calculating probability?

Back

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

Front

What is a favorable outcome in probability?

Back

A favorable outcome is an outcome that satisfies the condition of the event we are interested in.

Front

What does it mean if the probability of an event is 0?

Back

If the probability of an event is 0, it means that the event cannot occur.

Front

What does it mean if the probability of an event is 1?

Back

If the probability of an event is 1, it means that the event is certain to occur.

Front

In a bag with 3 red, 2 blue, and 5 green marbles, what is the probability of picking a red marble?

Back

P(red) = 3/(3+2+5) = 3/10.

Front

If a spinner is divided into 4 equal parts, what is the probability of landing on one specific part?

Back

P(specific part) = 1/4.

Front

What is the probability of not rolling a 6 on a fair die?

Back

P(not 6) = 5/6.

Front

If you flip a coin, what is the probability of getting heads?

Back

P(heads) = 1/2.

Front

What is the probability of drawing a heart from a standard deck of cards?

Back

P(heart) = 13/52 = 1/4.