#12.3 Two-Way Tables and Probability

What value should be in the box for students who did not run a half marathon?

• 112

• 151

• 19

• 282

What value should be in the box for the total number of people who ran a half marathon?

• 112

• 151

• 19

• 282

How many people were surveyed to create this two-way table?

• 112

• 151

• 19

• 282

What value should go in the box for total number of dog owners?

• 131

• 95

• 34

• 85

What value should go in the box for total number of cat owners?

• 131

• 95

• 34

• 85

How many people do not own a dog?

• 131

• 95

• 34

• 85

In a survey 199 people were asked if the amount of fresh water should be reduced (yes or no) and if they fish in the salt water (yes or no).

How many people go fishing in the salt water?

• 112

• 87

• 110

• 89

In a survey 199 people were asked if the amount of fresh water should be reduced (yes or no) and if they fish in the salt water (yes or no).

How many people do not believe the amount of fresh water should be reduced?

• 112

• 87

• 110

• 89

In a survey 199 people were asked if the amount of fresh water should be reduced (yes or no) and if they fish in the salt water (yes or no).

What is the probability that a person who goes fishing in the salt water believes the amount of fresh water should NOT be reduced?

•  $\frac{98}{110}$ 

•  $\frac{12}{110}$ 
  

• $\frac{98}{199}$
  

• $\frac{12}{199}$
  

In a survey 199 people were asked if the amount of fresh water should be reduced (yes or no) and if they fish in the salt water (yes or no).

What is the probability that a person said yes,  the amount of fresh water should be reduced, also goes fishing in the salt water?

•  $\frac{98}{199}$ 

•  $\frac{98}{112}$ 
  

•  $\frac{14}{112}$ 
  

•  $\frac{14}{199}$