GEO Unit 5 Test Review

You spin a spinner with 6 sections: 1 yellow (Y), 1 purple (P), 1 red (R), 1 blue (B), 1 orange, and 1 green (G).

What is the sample space for one spin of this spinner?

Let event A = The animal is a bird.

Let event B = The animal can fly.

Which outcomes are in A and B?

Tags

CCSS.HSS.CP.A.1

Kellie randomly chooses a number from 1 to 12. What is the probability she chooses a number less than 7?

Tags

CCSS.7.SP.C.7A

Let event A = The student plays basketball.

Let event B = The student plays soccer.

What is P(A or B)?

Tags

CCSS.HSS.CP.B.7

P(A) = 0.60, P(B) = 0.25, and

P(A and B) = 0.15.

What is P(A or B)?

Tags

CCSS.HSS.CP.B.7

A pet store sells mice, reptiles, and birds.

Let event A = A customer buys a mouse.

Let event B = A customer buys a bird.

What does P(A or B) = 0.35 mean in terms of this problem?

• The probability that a customer buys either a mouse or a bird is 35%.

• Buying a mouse and buying a bird are mutually exclusive events.

• The probability that a customer buys both a mouse and a bird is 35%.

• The probability that a customer buys neither a mouse nor a bird is 35%.

Tags

CCSS.HSS.CP.B.7

A marketing firm tracks data on grocery store visits. In one study, it finds that the probability that a shopper buys bread during a visit to the grocery store is 0.60, and the probability that a shopper buys cheese is 0.30.

Event A = A shopper buys bread.

Event B = A shopper buys cheese.

A and B are independent events if _____.

• the probability of buying bread and cheese is 0

• the probability of buying bread and cheese is 0.18

• the probability of buying bread or cheese is 0.90

• the probability of buying bread or cheese is 0.18

Tags

CCSS.HSS.CP.A.2

CCSS.HSS.CP.A.4

A and B are independent events. P(A) = 0.50 and P(B) = 0.30.

What is P(A and B)?

Tags

CCSS.HSS.CP.A.2

CCSS.HSS.CP.A.4

You flip two coins.

Let event A = The first coin comes up heads.

Let event B = The second coin comes up tails.

What does P(B|A) represent?

• The probability that both coins come up heads

• The probability that both coins come up tails

• The probability that the second coin comes up tails, given that the first coin comes up heads

• The probability that the first coin comes up heads, given that the second coin comes up tails

Tags

CCSS.HSS.CP.A.3

CCSS.HSS.CP.A.5

This Venn diagram shows sports played by 10 students.

Let event A = The student plays basketball.

Let event B = The student plays soccer.

What is P(A|B)?

Tags

CCSS.HSS.CP.B.6