Conditional Probability Practice

. What is the probability that a student has a brother given that they do not have a sister?

*Write your answer as a fraction*

Tags

CCSS.HSS.CP.A.3

CCSS.HSS.CP.B.6

CCSS.HSS.CP.A.4

CCSS.HSS.ID.B.5

What is the probability that a student plays a sport given that they play an instrument?

*Write your answer as a fraction*

Tags

CCSS.HSS.CP.A.3

CCSS.HSS.CP.B.6

CCSS.HSS.CP.A.4

What is the probability that a student plays a sport or that they play an instrument?

*Write your answer as a fraction*

Tags

CCSS.HSS.CP.A.4

CCSS.HSS.CP.A.1

CCSS.HSS.CP.B.7

P(A∣B)=

• P(A⋂B)/P(A)

• P(A⋂B)/P(B)

• P(A⋃B)/P(A)

• P(A⋃B)/P(B)

Tags

CCSS.HSS.CP.A.3

CCSS.HSS.CP.B.6

P(Sandals|Pants):

• 4/20
• 6/15
• 1/2
• 2/7

Tags

CCSS.HSS.CP.A.3

CCSS.HSS.CP.B.6

CCSS.HSS.CP.A.4

What is P(not sport | Foreign language)?

• 23/37
• 14/23
• 14/37
• 3/23

Tags

CCSS.HSS.CP.A.3

CCSS.HSS.CP.B.6

CCSS.HSS.CP.A.4

What is P(Foreign language | Sport)?

• 14/27
• 7/12
• 23/47
• 37/47

Tags

CCSS.HSS.CP.A.3

CCSS.HSS.CP.B.6

CCSS.HSS.CP.A.4

What is P(Ace given hearts)?

*convert your fraction to a percentage*

• 1.9%

• 7.7%

• 25%

• 6.3%

Tags

CCSS.HSS.CP.A.3

CCSS.HSS.CP.B.6

What is the probability of pulling an even number, given hearts and diamonds?

• 5/13

• 26/52

• 1/2

• 10/20

Tags

CCSS.HSS.CP.A.3

CCSS.HSS.CP.B.6

CCSS.HSS.CP.A.1

What is the probability of pulling a King, given spades?

• 1/13

• 1/4

• 1/52

• 4/52

Tags

CCSS.HSS.CP.A.3

CCSS.HSS.CP.B.6

CCSS.HSS.CP.A.1