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12 March, 16:23

Actual=7

scale1=7.033

scale2=6.91

scale3=7.1

which is most accurate?

also which is most precise?

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Answers (1)
  1. 12 March, 16:34
    0
    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.
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