Two-way tables: counts and percents

Answer Key - Grade 8 Math Worksheet - Building Confidence

Circle the best answer, or write your answer on the line.

1. Read this first

   Two-way table of students

   	Does a sport	No sport	Total
   Plays an instrument	18	12	30
   Does not play	10	20	30
   Total	28	32	60

2. 1.

   Tala surveyed students and made a two-way table. How many students who play an instrument also do a sport?

   18

3. Two-way table of club members

   	Likes hiking	Does not like hiking	Total
   Has a pet	14	6	20
   No pet	9	21	30
   Total	23	27	50

4. 2.

   Zee surveyed club members and made a two-way table. How many club members who have a pet also like hiking?

   14

5. Two-way table of students

   	Morning	Afternoon	Total
   Grade 7	16	19	35
   Grade 8	22	13	35
   Total	38	32	70

6. 3.

   Ari surveyed students and made a two-way table. How many students who are in Grade 7 also prefer morning recess?

   16
7. 4.

   Bo surveyed students and made a two-way table. How many students who bike to school also eat breakfast at school?

   7
8. 5.

   Jun's two-way table of students shows only the four inner cells. How many students in all are in the science club?

   30
9. 6.

   Kira's two-way table of students shows only the four inner cells. How many students in all sing in the choir?

   15
10. 7.

    Luz's two-way table of students shows only the four inner cells. How many students in all bring lunch?

    30
11. 8.

    In Milo's two-way table, one cell is smudged. How many students who help in the school garden do not like salad?

    7
12. 9.

    In Noah's two-way table, one cell is smudged. How many students who checked the weather report did not bring one?

    9

13. Two-way table of club members

    	Likes to sing	Does not like to sing	Total
    Plays guitar	15	?	25
    Does not play the guitar	9	16	25
    Total	24	26	50

14. 10.

    In Pia's two-way table, one cell is smudged. How many club members who play the guitar do not like to sing?

    10