The coefficient of variance (C.V.) is defined as
Correct answer: A. C.V.= (8 X 100) / X
- A. C.V.= (8 X 100) / X
- B. C.V.=(x X 100) / 8
- C. C.V.= (x X 8) / 100
- D. C.V.= (8 X 1000) / X
Explanation
The coefficient of variation is a standardized measure of the dispersion of a data set. It is defined as the ratio of the standard deviation (s) to the mean (x̄), often expressed as a percentage: (s / x̄) × 100.
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Analytical chemistry identifies and measures substances using separation and instrumental methods. Chromatography is studied through stationary and mobile phases, retention and Rf values, while spectroscopy connects absorption of electromagnetic radiation with molecular structure and supports qualitative and quantitative analysis through techniques such as UV-visible and infrared spectroscopy.
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