Conditional Probability

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

• .70

• .78

• .10

• .50

What is the probability that the person picked will not be a boy given they speak German?

• .72

• .42

• .16

• .27

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

• .53

• .46

• .67

• .31

What is the probability that they speak Spanish given they are a girl?

• 2.14

• .24

• .50

• .8571

P(Shoes|Pants):

• 4/20

• 6/15

• 1/2

• 5/7

P(Senior|Pizza):

• 10/15

• 4/5

• 1/2

• 10/5

Consider the following table with information about all of the students taking Statistics at Happy High School.

Find P( Part-time | Male)

• 0.57

• 0.42

• 0.37

• 0.65

Consider the following table with information about all of the students taking Statistics at Happy High School.

Find P( Female | Part-time) =

• 15/31

• 43/71

• 31/43

• 15/43

Which is the correct format for writing the conditional probability of Event C, given that Event D has occured?

• P(C/D)

• P(C) + P(D)

• P(C) X P(D)

• P(D/C)