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What are precise measurements?
Precise measurements have very little spread about the mean value, i.e. they are close to each other.
What are accurate measurements?
Accurate measurements are close to the true value.
True or False?
Zero errors affect the precision of measurements.
False.
Zero errors are a type of systematic error, so they affect the accuracy of measurements, not precision.
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What are precise measurements?
Precise measurements have very little spread about the mean value, i.e. they are close to each other.
What are accurate measurements?
Accurate measurements are close to the true value.
True or False?
Zero errors affect the precision of measurements.
False.
Zero errors are a type of systematic error, so they affect the accuracy of measurements, not precision.
Define reliability.
Reliability is a measure of the ability of an experimental procedure to produce the expected results when using the same method and equipment.
Define validity.
Validity is a measure of the suitability of an experimental procedure to measure what it is intended to measure.