Actual=7

scale1=7.033

scale2=6.91

scale3=7.1

which is most accurate?

also which is most precise?

The given data is

Actual = 7

scale1 = 7.033

scale2 = 6.91

scale3 = 7.1

Define

absolute difference = |Actual - Measured|

%error = 100 * [ (absolute difference) / Actual]

Note:

The scale with the lowest absolute difference is the most precise.

The scale with the lowest %error is most accurate.

Calculate absolute differences.

Scale1: |7 - 7.033| = 0.033

Scale2: |7 - 6.91| = 0.090

Scale3: |7 - 7.1} = 0.100

The most precise is Scale1

Calculate %error.

Scale1: 100 * (0.033/7) = 0.47%

Scale2: 100 * (0.090/7) = 1.29%

Scale3: 100 * (0.100/7) = 1.43%

The most accurate is Scale1

Answer:

Scale1 is most accurate.

Scale1 is most precise.