Conditional Probability

Pr(A∣B)

• Pr(A∩B)/Pr(B)

• Pr(A∩B)/P(A)

Tags

CCSS.HSS.CP.A.3

CCSS.HSS.CP.B.6

Pr(B∣A)=

• Pr(B⋂A)/Pr(B)

• Pr(B⋂A)/Pr(A)

Tags

CCSS.HSS.CP.A.3

CCSS.HSS.CP.B.6

CCSS.HSS.CP.B.8

What is the probability of choosing a Honda? 

• .5970
• .5373
• .4627
• .4030

Tags

CCSS.HSS.CP.A.1

CCSS.HSS.ID.B.5

What is the probability that a student does play a sport given they do not play an instrument? 

• .2
• .2222
• .10
• .5

Tags

CCSS.HSS.CP.A.3

CCSS.HSS.CP.A.4

CCSS.HSS.CP.B.6

CCSS.HSS.ID.B.5

A new credit card has been issued to 2000 customers. Of these customers, 1500 hold a Visa, 500 hold an AA card, and 40 hold a Visa and AA card. Find the probability that a random chosen customer holds a Visa and AA card, given they hold a Visa. 

• .0267
• 37.5
• .02
• .3333

Tags

CCSS.HSS.CP.A.3

CCSS.HSS.CP.B.6

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

The probability that a women likes the color blue is 10%. The probability of being a women is 40%. What is the probability that the a women is chose given they liked the color blue? 

• 4
• .4
• .1
• .25

Tags

CCSS.HSS.CP.A.3

CCSS.HSS.CP.B.6

What is the probability that a female is chose 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 is the probability that a student plays an instrument 

• .55
• .5
• .45
• .4

Tags

CCSS.HSS.CP.A.4

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.4

What is the probability that a student plays on a sports team given they don't play an instrument? 

• .7273
• .8
• .55
• .2222

Tags

CCSS.HSS.CP.A.3

CCSS.HSS.CP.A.4

CCSS.HSS.CP.B.6

CCSS.HSS.ID.B.5