Conditional Probability Basics

What is the probability that a student does not play on a sports team? 

• .5
• .45
• .55

Mary is a good student. The probability that she studies and passes her test is 3/5. If the probability that she studies is 8/9. What is the probability that she passes given that she studies? 

• 27/40
• 1.48
• .008
• .0593

What is the probability of choosing a Honda? 

• .5970
• .5373
• .4627
• .4030

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

• .2
• .2222
• .10
• .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 an AA, given they hold a Visa.

• .0267

• 37.5

• .02

• .3333

What is the probability that the person picked will be a boy given they speak german? 

• .7273
• .4
• .16
• .22

What is the probability that a female is chose given they like a Toyota? 

• .525
• .4627
• .6774
• .3143

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

• .7273
• .8
• .55
• .2222

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

• 2.14
• .24
• .4
• .8571

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

Find P( Full-time | Male)

• 7/3

• 3/10

• 3/7

• 4/7