Question

Two students measure the weight of a 10 Kg mass using a spring balance and record these readings as:

A: 10Kg, 10Kg, 10.5Kg, 10.5Kg, 9.5Kg

B: 10Kg, 10.1Kg, 10.1Kg, 9.8Kg, 9.9Kg

Then

Options

• A and B both are equally precise.

• B is more accurate than A.

• Neither A nor B is accurate.

• B is more precise than A.

Answer 1

B is more precise than A.

Explanation:

Readings of B have the lowest count of 0.1 kg, while A has the highest count of 0.5 kg. As a result, B is more accurate.