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Microsoft Corporation Message Board

  • cfuryurself cfuryurself Jan 12, 2013 11:31 AM Flag

    simple math question rewritten so some of the dimmer can understand it

    Let me rephrase the question.

    given a list of measurements for a single quantity which strategy provides the most likely best estimate of the true value.
    1 Averaging the measurements
    2 Averaging the measurements then applying the rules of significant digits to the average

    Which answer is most likely closer to the true answer ??

    Maybe an example would help.
    If a civil engunear weighed his collection of pet rocks every day for five days for a graduate lab course in rock weighing which value should he report to his perfessur for the weight of his rock collection.

    A pick the number he likes cause its purty.
    B Average the weights he recorded and report this.
    C Apply the rules of significant digits to the average from B and report this.
    D Any other option for the 5 readings

    Sentiment: Sell

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