Finding Probabilities - Ind./Dep.

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 difference between independent and dependent events?

Back

Independent events are those whose outcomes do not affect each other, while dependent events are those where the outcome of one event affects the outcome of another.

Front

How do you calculate the probability of an independent event?

Back

The probability of an independent event is calculated by multiplying the probabilities of each individual event.

Front

How do you calculate the probability of a dependent event?

Back

The probability of a dependent event is calculated by multiplying the probability of the first event by the conditional probability of the second event given the first.

Front

What is the probability of rolling a 6 on a number cube?

Back

The probability of rolling a 6 on a standard number cube is 1/6.

Front

If a spinner has 4 equal sections numbered 1 to 4, what is the probability of landing on an odd number?

Back

The probability of landing on an odd number (1 or 3) is 2/4 or 1/2.

Front

What is the probability of drawing two red cards from a deck of 12 cards (6 red, 6 black) without replacement?

Back

The probability is 5/22.

Front

What is the probability of rolling a number less than 5 on a number cube?

Back

The probability of rolling a number less than 5 (1, 2, 3, or 4) is 4/6 or 2/3.

Front

In a fruit basket with 9 apples, 3 bananas, 7 oranges, 5 pears, and 1 grapefruit, what is the probability of choosing two pears without replacement?

Back

The probability is 1/30.

Front

What is the probability of getting yellow from a spinner with 12 equal sections, where only 1 section is yellow?

Back

The probability is 1/12.