1.Cathy rolls a number cube that is labeled from 1 to 6. What is the probability that she rolls an even number or a multiple of 3?

Choices

2/3

1/2

5/6

1/3

2.Joseph has 20 coins in his pocket. He has 5 nickels, 6 quarters, 7 dimes, and 2 pennies. Joseph chooses a coin at random.

What is the probability that he selects a quarter or a penny from his pocket?

Choices

4/5

1/2

3/5

2/5

3.There are 20 cards labeled from 1 to 20 in a bag. A card is randomly selected from the bag.

What is the probability of getting an even number or a 1?

Choices

11/20

1/2

9/20

3/5

awsometrunt14 Dec 18, 2018

#2**+3 **

1.Cathy rolls a number cube that is labeled from 1 to 6. What is the probability that she rolls an even number or a multiple of 3?

P (even or multiple of 3) = P(even) + P(multiple of 3) - P(even and multiple of 3) =

3/6 + 2/6 - 1/6 =

4/6 = 2/3

2.Joseph has 20 coins in his pocket. He has 5 nickels, 6 quarters, 7 dimes, and 2 pennies. Joseph chooses a coin at random.

What is the probability that he selects a quarter or a penny from his pocket?

P ( Q or P ) = P(Q) + P(P) - P (Q and P) =

6/20 + 2/20 - 0/20 = 8/20 = 2/5

3.There are 20 cards labeled from 1 to 20 in a bag. A card is randomly selected from the bag.

What is the probability of getting an even number or a 1?

P (E or 1) = P(E) + P(1) - P( E and 1) =

10/20 + 1/20 - 0/20 = 11/20

CPhill Dec 18, 2018