Question

Can someone tell me what I’m doing wrong

Answer 1

Also for number 3 is true because the number of students with 7inch feet are 4. The number of students with 7 1/2 inch feet are 8. That’s double

Answer 2

In the key it states that each dot is 2 students. So when counting how many people have a foot size you have to account for the fact that each point represents two people

Explanation: