Conditional Probability from Two-Way Tables

A survey of the 12th grade students at Tucker High School found that 84% of the seniors have their driver’s licenses, 16% of seniors take the bus every day to school, and 14% of the seniors have driver’s licenses and take the bus to school every day.

To the nearest whole percent, what is the probability that a senior takes the bus to school every day, given that they have a driver’s license?

• 17%

• 19%

• 36%

• 70%

• 0.2

• 0.3

• 0.4

• 0.5

• .2855
• .6246
• .0922
• .3230

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

• .2

• .2222

• .10

• .5

Given that the grade is a B, what is the probability of the student being male?

• 6/15

• 9/15

• 6/56

• 9/44

P(Pizza|Senior):

• 10/15

• 4/5

• 2/3

• 10/5

Are the events "first class passenger" and "survived" independent?

• Independent

• Not Independent

What is the probability that a randomly selected student plays sports and does not participate in community service?

Mr. Great Artist sold a total of 1,790 prints of one of his drawings. Out of all 1,273 unframed prints that he sold, 152 were small and 544 were medium-sized. Out of all of the framed prints that he sold, 23 were small and 42 were extra large. Of the large prints that he sold, 188 were framed and 496 were unframed.

• 329

• 475

• 517

• 1034

Let M represent the event of randomly selecting a male. Let S represent the event of randomly selecting a person that drives a SUV.

Determine if the events M and S are independent.

• Independent

• Not Independent