Extra Set

Grade 8 · Unit 7 · L32 · Version A · 0A19

Construct and interpret two-way tables

Name ________________

Date ________________

Period ________________

1.
A two-way table records whether students play a sport (rows: Grade 7, Grade 8; columns: Yes, No). Grade 7: 11 yes, 8 no. Grade 8: 6 yes, 13 no. What fraction of all students play a sport?
Yes No
G7 11 8
G8 6 13
Answer. 1738
Yes total 17 out of 38 = 1738.
2.
A two-way table records whether students play a sport (rows: Grade 7, Grade 8; columns: Yes, No). Grade 7: 11 yes, 9 no. Grade 8: 11 yes, 11 no. What fraction of all students play a sport?
Yes No
G7 11 9
G8 11 11
Answer. 1121
Yes total 22 out of 42 = 1121.
3.
A two-way table records whether students play a sport (rows: Grade 7, Grade 8; columns: Yes, No). Grade 7: 13 yes, 10 no. Grade 8: 11 yes, 12 no. What fraction of all students play a sport?
Yes No
G7 13 10
G8 11 12
Answer. 1223
Yes total 24 out of 46 = 1223.
4.
A two-way table records whether students play a sport (rows: Grade 7, Grade 8; columns: Yes, No). Grade 7: 13 yes, 7 no. Grade 8: 8 yes, 14 no. What fraction of all students play a sport?
Yes No
G7 13 7
G8 8 14
Answer. 12
Yes total 21 out of 42 = 12.
5.
A two-way table records whether students play a sport (rows: Grade 7, Grade 8; columns: Yes, No). Grade 7: 15 yes, 10 no. Grade 8: 6 yes, 14 no. What fraction of all students play a sport? Then Malik needs 4 of that amount. What is the total they need?
Yes No
G7 15 10
G8 6 14
Answer. 11315
Yes total 21 out of 45 = 715. Then multiply by 4: 11315.
6.
A two-way table records whether students play a sport (rows: Grade 7, Grade 8; columns: Yes, No). Grade 7: 15 yes, 8 no. Grade 8: 6 yes, 14 no. What fraction of all students play a sport? Then Owen needs 4 of that amount. What is the total they need?
Yes No
G7 15 8
G8 6 14
Answer. 14143
Yes total 21 out of 43 = 2143. Then multiply by 4: 14143.
7.
A two-way table records whether students play a sport (rows: Grade 7, Grade 8; columns: Yes, No). Grade 7: 13 yes, 9 no. Grade 8: 6 yes, 14 no. What fraction of all students play a sport? Then Luis needs 4 of that amount. What is the total they need?
Yes No
G7 13 9
G8 6 14
Answer. 11721
Yes total 19 out of 42 = 1942. Then multiply by 4: 11721.
8.
A two-way table records whether students play a sport (rows: Grade 7, Grade 8; columns: Yes, No). Grade 7: 14 yes, 8 no. Grade 8: 12 yes, 7 no. What fraction of all students play a sport? Then Sam needs 4 of that amount. What is the total they need?
Yes No
G7 14 8
G8 12 7
Answer. 22241
Yes total 26 out of 41 = 2641. Then multiply by 4: 22241.
9.
A two-way table records whether students play a sport (rows: Grade 7, Grade 8; columns: Yes, No). Grade 7: 9 yes, 12 no. Grade 8: 10 yes, 12 no. What fraction of all students play a sport? Then Elena needs 5 of that amount. What is the total they need?
Yes No
G7 9 12
G8 10 12
Answer. 2943
Yes total 19 out of 43 = 1943. Then multiply by 5: 2943.
10.
A two-way table records whether students play a sport (rows: Grade 7, Grade 8; columns: Yes, No). Grade 7: 12 yes, 6 no. Grade 8: 6 yes, 15 no. What fraction of all students play a sport? Then Owen needs 4 of that amount. What is the total they need?
Yes No
G7 12 6
G8 6 15
Answer. 11113
Yes total 18 out of 39 = 613. Then multiply by 4: 11113.
11.
Think
Grace tried this problem:
A two-way table records whether students play a sport (rows: Grade 7, Grade 8; columns: Yes, No). Grade 7: 10 yes, 8 no. Grade 8: 10 yes, 12 no. What fraction of all students play a sport?
Grace wrote 13. That is not correct. What is the right answer?
Yes No
G7 10 8
G8 10 12
Answer. 12
Grace’s answer 13 is off. Yes total 20 out of 40 = 12.
12.
Think
Malik tried this problem:
A two-way table records whether students play a sport (rows: Grade 7, Grade 8; columns: Yes, No). Grade 7: 10 yes, 6 no. Grade 8: 12 yes, 13 no. What fraction of all students play a sport?
Malik wrote 2242. That is not correct. What is the right answer?
Yes No
G7 10 6
G8 12 13
Answer. 2241
Malik’s answer 2242 is off. Yes total 22 out of 41 = 2241.

Yes	No
G7 11	8
G8 6	13

Yes	No
G7 11	9
G8 11	11

Yes	No
G7 13	10
G8 11	12

Yes	No
G7 13	7
G8 8	14

Yes	No
G7 15	10
G8 6	14

Yes	No
G7 15	8
G8 6	14

Yes	No
G7 13	9
G8 6	14

Yes	No
G7 14	8
G8 12	7

Yes	No
G7 9	12
G8 10	12

Yes	No
G7 12	6
G8 6	15

Yes	No
G7 10	8
G8 10	12

Yes	No
G7 10	6
G8 12	13

Original extra practice. Keys are computed from the items, not guessed.

L32 · Construct and interpret two-way tables