The Addition Rules for Probability

In a fish tank, there are 23 goldfish, 4 angelfish, and 9 guppies. If a fish is selected at random, find the probability that it is an angelfish or a guppy.

• 3/4

• 13/36

• 8/9

• 23/26

A single card is drawn from a deck. Find the probability of selecting a heart or a 9.

• 9/52

• 1/4

• 4/13

• 17/52

If a single card is drawn from an ordinary deck of cards, what is the probability of drawing a jack, queen, king, or ace?

• 17/52

• 4/13

• 9/26

• 5/13

A single card is drawn from a deck. Find the probability of selecting a 4 or a diamond.

• 5/13

• 7/13

• 4/13

• 9/13

A single card is drawn from a deck. Find the probability of selecting a club or a diamond.

• 4/13

• 1/2

• 3/4

• 6/13

A single card is drawn from a deck. Find the probability of selecting a jack or a black card.

• 7/13

• 8/13

• 3/7

• 5/7

Amanda spins a spinner numbered 1 to 10. What is the probability that the spinner lands on an odd number or a number that is divisible by 3?

• $\frac{4}{5}$

• $\frac{3}{5}$

• $\frac{1}{5}$

• $\frac{3}{20}$

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

CCSS.7.SP.C.8

A group of 5 men and 5 women are applying for two job positions. Each of the 10 job candidates has the same chance of receiving a job offer. What is the probability that the company will hire a man or a woman for each of the two positions?

• $\frac{1}{4}$

• $\frac{1}{2}$

• $\frac{3}{4}$

• $\frac{1}{1}$

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

CCSS.7.SP.C.8

Using the spinner, what is the probability of spinning purple or green?

• $\frac{1}{6}$

• $\frac{1}{3}$

• $\frac{2}{3}$

• $\frac{5}{6}$

Tags

CCSS.7.SP.C.5

The outcomes for rolling two number cubes numbered 1 through 6 are shown above. What is the probability the sum of the number cubes will be 7 or 4?

• $\frac{1}{12}$

• $\frac{1}{6}$

• $\frac{1}{4}$

• $\frac{11}{36}$

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

CCSS.7.SP.C.8