Question
Download Solution PDFConsider the following statements regarding precision in measurements of a quantity:
1. Precision is the measure of the spread of the incident errors.
2. Precision is independent of the realizable correctness of the measurement.
3. Precision is usually described in terms of number of digits used in the measurement by a digital instrument.
Which of the above statements are correct?Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFPrecision: The most repeatable value (or) the reproducible value out of the set of records is known as precision. It is the measure of consistency. It gives the closeness of individual measured value to the average of all measured values.
The precision of an instrument does not guarantee accuracy. The precision can be achieved without accuracy. So, it is independent of the realizable correctness of the measurement
An instrument with more significant figures has more precision and hence precision is usually described in terms of number of digits used in the measurement by a digital instrument.
Last updated on Jul 2, 2025
-> ESE Mains 2025 exam date has been released. As per the schedule, UPSC IES Mains exam 2025 will be conducted on August 10.
-> UPSC ESE result 2025 has been released. Candidates can download the ESE prelims result PDF from here.
-> UPSC ESE admit card 2025 for the prelims exam has been released.
-> The UPSC IES Prelims 2025 will be held on 8th June 2025.
-> The selection process includes a Prelims and a Mains Examination, followed by a Personality Test/Interview.
-> Candidates should attempt the UPSC IES mock tests to increase their efficiency. The UPSC IES previous year papers can be downloaded here.