Conditional Probability

What does P(A|B) represent in conditional probability?

• The probability of A or B occurring

• The probability of B occurring if A has already occurred

• The probability of A occurring after B has occurred

• The probability of A and B occurring together

Tags

CCSS.HSS.CP.A.3

CCSS.HSS.CP.A.5

In the die example, what is the probability of event A given B?

• 2/3

• 1/3

• 3/4

• 1/2

Tags

CCSS.HSS.CP.B.6

How many students are enrolled in both algebra and chemistry?

• 30 students

• 80 students

• 150 students

• 500 students

Tags

CCSS.8.SP.A.4

What is the probability of a student taking algebra in the school?

• 0.5 or 50%

• 0.2 or 20%

• 0.3 or 30%

• 0.1 or 10%

Tags

CCSS.7.SP.C.5

What is the probability of a student taking chemistry given they are taking algebra?

• 0.4 or 40%

• 0.1 or 10%

• 0.3 or 30%

• 0.2 or 20%

Tags

CCSS.HSS.CP.B.6

How is a contingency table useful in conditional probability?

• It helps in visualizing the data

• It calculates the exact probability values

• It replaces the need for formulas

• It predicts future events

Tags

CCSS.HSS.CP.A.4

What is the probability of selecting a female bird in the zoo?

• 0.45 or 45%

• 0.65 or 65%

• 0.55 or 55%

• 0.35 or 35%

Tags

CCSS.7.SP.C.7B

In the zoo example, how many birds have brown eyes?

• 170 birds

• 30 birds

• 200 birds

• 100 birds

Tags

CCSS.8.SP.A.4

What is the probability of selecting a bird that is a male given it has blue eyes?

• 1/3

• 2/3

• 1/2

• 3/4

Tags

CCSS.HSS.CP.B.6

What is the probability of a bird having blue eyes given it is female?

• 1/12

• 1/11

• 1/10

• 1/9

Tags

CCSS.HSS.CP.A.4