The average number of prescriptions written by Dr. Jones on a daily basis is 12. The assistant thought that he number was 17. What us the percent error between the actual amount and the estimate by the assistant?

Answer=41.67%

First we have to solve for the error ...

Error=ApproximateValue-ExactValue

Error=17-12

Error=5

Now lets solve for the percent error

PercentError = (Error/ExactValue) * 100

PercentError = (5/12) * 100

PercentError=0.41666666*100

PercentError=41.67%