We need to find a percent error.
First find the difference between the exact value and the estimate
132 -127 = 5
Now divide by the exact value
5/132 =.0378787878.....
We then need to change it to a percent by multiplying by 100
3.78787878 %
Round to the nearest tenth, which is the first decimal place.
We look at the first number after the decimal and round up since the next number is an 8
3.8 % error
The final answer is 3.8% error
