Answer:
The absolute error is the absolute value of the difference between the actual value and the estimated value:
Absolute error = |actual value - estimated value| = |9.5 kg - 9 kg| = 0.5 kg
The percent error is the absolute error expressed as a percentage of the actual value:
Percent error = (|actual value - estimated value| / actual value) x 100%
Plugging in the given values, we get:
Percent error = (0.5 kg / 9.5 kg) x 100% = 5.3%
Rounding to the nearest tenth, the absolute error is 0.5 kg and the percent error is 5.3%.