Question

Mrs. Trout estimated her math class next year would include 28 students. The actual size of the class turned out to be 32 students. She calculated the percent error in the following way. 28 - 32 = -4 432 = 0.125% Is Mrs. Trout correct? Explain why or why not.

Answer 1

Mrs. Trout set up the ratio correctly, but she forgot to multiply by 100 to get the correct percent.

Explanation:

This was the sample response on edge

Answer 2

The answer she has is not correct.
All the steps she did are correct, except they forgot to convert the decimal answer into the proper percentage by multiplying it by 100.

The correct answer should be 0.125 * 100 = 12.5%