Adding Probabilities Practice

Front

What is the probability of choosing a card that is a spade OR a 7 from a standard deck of cards?

Back

4/13

Front

In a fish tank with 23 goldfish, 4 angelfish, and 9 guppies, what is the probability of selecting an angelfish or a guppy?

Back

13/36

Front

What is the probability that a randomly selected person from a poll of 121,973 people is female or has private insurance?

Back

102,664/121,973

Front

What is the probability of selecting a senator who is a Democrat or an Independent from the 112th U.S Congress?

Back

53/100

Front

If you roll one die, what is the probability of getting an even number or a multiple of 3?

Back

2/3

Front

Define probability in the context of a random experiment.

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 the union of two events A and B?

Back

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