Unit 3 Review

Front

What is the definition of 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 conditional probability?

Back

The formula for conditional probability is P(A|B) = P(A and B) / P(B), where P(A|B) is the probability of event A given that event B has occurred.

Front

If the probability of an event is 0, what does that mean?

Back

If the probability of an event is 0, it means that the event is impossible and will not occur.

Front

If the probability of an event is 1, what does that mean?

Back

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

Front

What is the probability of rolling a die and getting a number greater than 4?

Back

The probability is 1/3, as there are two favorable outcomes (5 and 6) out of six possible outcomes.

Front

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

Back

The probability is 1/2, as there are 26 red cards out of 52 total cards.

Front

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

Back

For two independent events A and B, the probability of both occurring is P(A) * P(B).

Front

What is the total number of outcomes when flipping a coin three times?

Back

The total number of outcomes is 2^3 = 8.

Front

What is the formula for combinations?

Back

The formula for combinations is C(n, r) = n! / (r!(n - r)!), where n is the total number of items and r is the number of items to choose.

Front

How many ways can you arrange 3 books on a shelf?

Back

The number of ways to arrange 3 books is 3! = 6.