General Addition Rule

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?

• 5/6
• 1/2
• 1/3
• 1/6

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

The following M & M colors are in the bowl:
4 yellow, 6 orange, 3 green, 5 blue, 2 brown.
P( Yellow or green)

• 1/40
• 7/20
• 6/19
• 1/38

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

CCSS.7.SP.C.8

What is the probability that the person picked will be a boy given they speak german? 

• .7273
• .4
• .16
• .22

Tags

CCSS.HSS.CP.A.3

CCSS.HSS.CP.A.4

CCSS.HSS.CP.B.6

CCSS.HSS.ID.B.5

What is the probability that a female is chosen given they like a Toyota? 

• .525
• .4627
• .6774
• .3143

Tags

CCSS.HSS.CP.A.3

CCSS.HSS.CP.A.4

CCSS.HSS.CP.B.6

CCSS.HSS.ID.B.5

What percentage of the days that it rained, did they forecast no rain?

• About 20%
• About 18%
• About 14%
• About 12%

Tags

CCSS.7.EE.B.3

CCSS.7.RP.A.2

CCSS.7.RP.A.3

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 total of 540 customers, who frequented an ice cream shop, responded to a survey asking if they preferred chocolate or vanilla ice cream.

308 of the customers preferred chocolate ice cream.

263 of the customers were female.

152 of the customers were males who preferred vanilla ice cream.

What is the probability that a customer chosen at random is a male or prefers vanilla ice cream?

• $\frac{419}{540}$

• $\frac{119}{180}$

• $\frac{197}{540}$

• $\frac{38}{135}$

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

CCSS.7.SP.C.8

Thirty-two percent of families residing in a rural, farming town own a goat and 41% of families own a dog. Twenty-four percent of families own both types of animals. If a family from this town is chosen at random, what is the probability that it owns either a goat or a dog?

• 0.15

• 0.33

• 0.49

• 0.97

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

CCSS.7.SP.C.8

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

• $\frac{4}{49}$

• $\frac{3}{7}$

• $\frac{4}{7}$

• $\frac{14}{15}$

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

CCSS.7.SP.C.8

If P(A) = 0.24, P(B) = 0.41, and P(A and B) = 0.18, what is P(A or B)?

• 0.17

• 0.47

• 0.59

• 0.65

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

CCSS.7.SP.C.8