Question

a survey conducted in a certain town found that 1 out of every 5 individuals owned a bike. A statistician calculated the margin of error to be 1.5%. What is the maximum percentage of individuals who own a bike?

Answer 1

 The maximum percentage of individuals who own a bike is 21.5%

Answer 2

1 out of every 5 means $\frac{1}{5}=0.2$. This means $0.2*100=20$ percent.

Margin of error, according to the statistician, is 1.5%.

So 20% can be 1.5% less or 1.5% more.

We want the MAXIMUM PERCENTAGE, so we take $20+1.5=21.5$ percent. That is the maxium percentage of individuals who can own a bike.

ANSWER: 21.5%