See what we can offer to your school
"SimpleStudy just makes sense...”
Get the best plan for your school
10 questions from this quiz
The sample size
Area ratio equals sample size ratio
Larger chart's size is 2.25 times
Number = (90/360) × 200
Find total sample size for each
Different total sample sizes
Assuming same angles mean same numbers
Angle/360 × total sample size
75 people
They represent different numbers
Select your subjects, and get access to A+ resources today.