A meteorologist predicted that there would be 1.0 inches of rainfall from a storm. Instead, there were 2.2 inches of rainfall. Which statements are true?


a

The prediction was off 35%

b

The percent error of the prediction was about 55%.

c

If the percent error should be less than 20%, the prediction was acceptable.

d

The difference between the predicted and the actual rainfall was 1.2 inches