pets survey\n| | pets | no pets | total |\n| ---- | ---- | ---- | ---- |\n| 6th grade | 13 | 27 | 40 |\n|…
pets survey\n| | pets | no pets | total |\n| ---- | ---- | ---- | ---- |\n| 6th grade | 13 | 27 | 40 |\n| 7th grade | 21 | 29 | 50 |\n| 8th grade | 15 | 24 | 39 |\n| total | 49 | 80 | 129 |\nhow many 7th graders have a pet?
Answer
Explanation:
Step1: Locate 7th - grade row and Pets column
Check the table.
Step2: Read the value
The value in the intersection of 7th - grade row and Pets column is 21.
Answer:
21