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. Two-way table of readers

   	Likes drawing	Does not like drawing	Total
   Reads comics	12	8	?
   Does not read comics	15	25	?
   Total	?	?	?

8. 4.

   Esme's two-way table of readers shows only the four inner cells. How many readers in all read comics?

   20

9. Two-way table of students

   	Entered the fair	Did not enter	Total
   Science club	9	21	?
   Not in the club	6	24	?
   Total	?	?	?

10. 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
11. 6.

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

    15
12. 7.

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

    7
13. 8.

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

    9

14. 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

15. 9.

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

    10

16. Two-way table of visitors

    	Stayed	Left early	Total
    Flew a kite	26	?	40
    Did not fly one	11	19	30
    Total	37	33	70

17. 10.

    In Ren's two-way table, one cell is smudged. How many visitors who flew a kite left early?

    14