GK
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The standard being too strict
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Human error
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Limitations of the measuring instrument
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Both human error and the limitations of the measuring instrument
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Detailed explanation-1: -All measurements have a degree of uncertainty regardless of precision and accuracy. This is caused by two factors, the limitation of the measuring instrument (systematic error) and the skill of the experimenter making the measurements (random error).
Detailed explanation-2: -Lack of precision is referred to as ‘random error’. Validity: The extent to which the study measures what it is intended to measure.
Detailed explanation-3: -Precision is a measure of statistical variability. It describes random errors which is caused by permanent, unpredictable fluctuations of measuring instrument. In other words, it basically describes closeness of the measured values.
Detailed explanation-4: -Answer and Explanation: Poor precision in will statistically result in large standard deviations which reduces the investigators confidence in the all resulting data.