Probability Flashcard 3A Review

Front

What is the probability that an event will occur if it is certain?

Back

1

Front

What is the probability that an event will occur if it is impossible?

Back

0

Front

If a class has 10% cheese, 30% pepperoni, 25% sausage, and 5% ham as pizza toppings, what percent of the class has a different opinion?

Back

30%

Front

In a bag of M&M's with 6 blue, 4 green, 2 yellow, and 8 brown M&M's, what is the probability of not choosing a blue M&M?

Back

7/10

Front

How do you calculate the probability of multiple events occurring together?

Back

Add the probabilities of the individual events if they are mutually exclusive.

Front

What is the formula for calculating the probability of an event?

Back

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

Front

If the probability of an event A is 0.4 and the probability of event B is 0.5, what is the probability of either A or B occurring if they are independent?

Back

0.7 (P(A or B) = P(A) + P(B) - P(A and B))

Front

What is the complement of an event?

Back

The complement of an event A is the probability that A does not occur, calculated as 1 - P(A).

Front

In probability, what does it mean for events to be mutually exclusive?

Back

Mutually exclusive events cannot occur at the same time.

Front

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

Back

1/2 (There are 26 red cards out of 52 total cards.)