Two-way tables Quiz

Name: ______________________   Date: __________   Score: ____ / 10

10 questions. Calculator allowed. Show your working. steplyclass.com/probability/two-way-tables/quiz/

1. 1

   Two-way table: boys 12 cat 8 dog, girls 10 cat 20 dog; P(dog)

   Answer: ____________________

2. 2

   Two-way table: men 16 yes 4 no, women 12 yes 8 no; P(yes)

   Answer: ____________________

3. 3

   Two-way table: juniors 8 bus 12 car, seniors 6 bus 14 car; P(junior)
   1. A) P(junior) = 1
   2. B) P(junior) = −12
   3. C) P(junior) = 12

4. 4

   Two-way table: boys 9 art 6 music, girls 7 art 8 music; P(boy and art)

   Answer: ____________________

5. 5

   Two-way table: adults 30 tea 10 coffee, children 5 tea 15 coffee; P(child and coffee)
   1. A) P(child and coffee) = −14
   2. B) P(child and coffee) = 14
   3. C) P(child and coffee) = 35

6. 6

   Two-way table: boys 5 yes 15 no, girls 10 yes 10 no; P(girl and yes)

   Answer: ____________________

7. 7

   Two-way table: men 16 yes 4 no, women 12 yes 8 no; P(no given woman)
   1. A) P(no | woman) = −25
   2. B) P(no | woman) = 15
   3. C) P(no | woman) = 25

8. 8

   Two-way table: boys 12 cat 8 dog, girls 10 cat 20 dog; P(girl or dog)

   Answer: ____________________

9. 9

   Two-way table: men 14 walk 6 drive, women 9 walk 11 drive; P(man or walk)

   Answer: ____________________

10. 10

    Two-way table: men 20 left 5 right, women 10 left 15 right; P(woman or right)

    Answer: ____________________