Probability Mixed Practice

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 the probability of an event?

Back

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

Front

If a jar contains 3 red marbles and 2 blue marbles, what is the probability of picking a red marble?

Back

Probability = 3/(3+2) = 3/5.

Front

What does it mean to replace an item after selection in probability?

Back

Replacing an item means putting it back into the set before the next selection, keeping the total number of items constant.

Front

What is the probability of rolling a 3 on a standard six-sided die?

Back

Probability = 1/6.

Front

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

Back

Probability = (1/2) * (1/2) = 1/4.

Front

What is a sample space in probability?

Back

A sample space is the set of all possible outcomes of a probability experiment.

Front

How do you calculate the probability of two independent events occurring?

Back

Multiply the probabilities of each event: P(A and B) = P(A) * P(B).

Front

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

Back

Probability = 13/52 = 1/4.

Front

What is the difference between independent and dependent events?

Back

Independent events do not affect each other's outcomes, while dependent events do.