precisely accurate?

Question

Identify each of the following as examples of precision or accuracy in the measurement.

1. Time for a model race car to complete one lap. 6.12 sec; 6.01 sec; 5.96 sec
2. Blood glucose levels taken with a home monitoring device are compared to blood glucose levels measured with a laboratory test.
3. In a specific chemical reaction it is expected that 100% of the reactants will react to form product. When the mass of the product is measured it is found that there is a .12% difference in what was expected.
4. A student kept record of his distance in the standing long jump. He had distances of 5 feet 3inches; 5 feet 0 inches; 4 feet 11 inches
5. Measuring the mass of an object to the nearest milligram

Answer 1

1. Precision, since the times are so close together.
2. Accuracy, since most likely both would give accurate enough results.
3. Accuracy, since they're barely over 1/10 a percent off.
4. Precision, same reason as #1.
5. Accuracy. Nothing to really go on for precision.

Answer 2

Precisely Accurate