Probability Using "or"

What is the probability of spinning green or blue?

• 0

• 5/12

• 6/12

• 3/4

Tags

CCSS.HSS.CP.B.7

A jar contains 2 pink, 6 red, and 4 blue marbles. If you pick one marble without looking, what is the probability that the marble you pick will be red or blue?

• 10/12

• 1/2

• 1/3

• 1/6

The letters that form the word ALGEBRA are placed in a bowl. What is the probability of choosing the letters “A” or "E" when drawing from the bowl?

• 2/49

• 2/7

• 3/7

• 10/49

Tags

CCSS.HSS.CP.B.7

Lucy has the spinner pictured and spins it. What is the probability that she lands on blue or on yellow? Simplify.

• 1 / 16

• 1 ⁄ 2

• 1 ⁄ 8

• 3 ⁄ 4

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?

• $\frac{1}{6}$

• $\frac{1}{3}$

• $\frac{4}{6}$

• $\frac{5}{6}$

Tags

CCSS.HSS.CP.B.7

A box contains 18 blue flashlights, 3 red flashlights, 7 silver flashlights, and 2 black flashlights. The flashlights are identical in size and shape. If one flashlight is chosen at random, what is the probability that the flashlight will be either blue or black?

• $\frac{1}{3}$

• $\frac{1}{2}$

• $\frac{3}{5}$

•  $\frac{20}{30}$ 

Tags

CCSS.HSS.CP.B.7

A seven-sided number cube with sides numbered 1, 2, 3, 4, 5, 6, 7 is rolled. What is the probability that a 4 or an odd number is rolled?

• $\frac{4}{49}$

• $\frac{2}{7}$

• $\frac{3}{7}$

• $\frac{5}{7}$

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

CCSS.7.SP.C.8

A box contains 18 blue chips, 6 red chips, 4 green chips and 2 yellow chips that are identical in size and shape. If one chip is chosen at random, what is the probability that the chip will be either blue or yellow?

• $\frac{20}{30}$

• $\frac{1}{3}$

• $\frac{3}{5}$

• $\frac{1}{2}$

Tags

CCSS.HSS.CP.B.7

You pick a marble from this bag.

What is the probability you will choose either a black or white marble? Simplify.

• 3/5

• 9/100

• 1/10

• 2/5

Tags

CCSS.HSS.CP.B.7

A bag contains 9 green marbles, 5 yellow marbles and 6 red marbles. What is the probability of selecting a green or red marble?

• 9/20

• 6/20

• 15/20

• 2/3

Tags

CCSS.HSS.CP.B.7