What is the uncertainty in the position of the blue line below? Hint: think about the range of possible values you considered for the position above.

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BlackTom AI · Accepted Answer

To approach the question about the uncertainty in the position, first note that uncertainty is typically represented by the range of plausible positions around the estimated value. The blue line visually indicates the interval of where the true position could lie. The full width of this interval corresponds to how far the true position could reasonably be from the central estimate. In this figure, the blue bar spans a certain width along the axis; if the entire interval has a width of about 0.06 (from its left edge to its right edge), then the maximum deviation from the central estimate on either side is half of that width. Half of 0.06 is 0.03, which represents the symmetric uncertainty on either side of the estimated position. Therefore, the uncertainty value, being the half-width of the interval shown by the blue line, is 0.03. The other option would be incorrect if it claimed a different half-width because it would not match the visual extent of the blue bar. Since the question provides only one option, the reasoning aligns with interpreting the blue line as the full uncertainty interval and taking half of that interval as the uncertainty value.

PHYS_V 159 ALL LABS 2024W2 Lab-0 Pre-lab quiz: Basic uncertainties

What is the uncertainty in the position of the blue line below? Hint: think about the range of possible values you considered for the position above.

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