Probability Review

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

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

Front

What is the probability of getting heads when flipping a fair coin?

Back

1/2.

Front

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

Back

1/4.

Front

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

Back

1/6.

Front

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

Back

P(A and B) = P(A) * P(B).

Front

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

Back

1/2.

Front

What is the probability of getting a rap OR country song from a playlist of 14 rock, 23 rap, 8 country, and 12 pop songs?

Back

31/57.

Front

What is conditional probability?

Back

The probability of an event occurring given that another event has already occurred.

Front

What is the probability that a student plays a sport given they do not play an instrument?

Back

2/9.