Answer:
Tim's percent error is 58.1 % .
Step-by-step explanation:
Formula

Where
Change in value = |Approx value - original value|
As given
Tim predicts he will get 98 points on the next exam.
If Tim actually earned 62 points .
Original value = 62
Approx value = 98
Change in value = |98 - 62|
= 36
Putting all the values in the formula


Percentage error = 58.1 % (Approx)
Therefore Tim's percent error is 58.1 % .