Answer:
2m and 11.8%
Explanation:
Absolute error is defined mathematically as:
Error/original value
[Original value - estimated value]
[17 - 15 ] = 2m
The percentage error would be
[Original value - estimated value]/ original value
[17 - 15 ] / 17 × 100%
0.1176 × 100% = 11.76%
11.8% [ to the nearest tenth]