Standard deviation and coefficient variation
[DOC File]Chapter 13
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The coefficient of variation is a better measure of dispersion when we wish to consider the relative size of the standard deviation or compare two or more investments of different size. 13-4. Explain how the concept of risk can be incorporated into the capital budgeting process.
[DOC File]Example 18 - Yola
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Standard deviation of number of workers on strike = 100 . Standard deviation of daily production in '000 Rs = 2 . Coefficient of correlation between number of workers on strike and daily production was = 0.8 . 46. In a partially destroyed record of the following data available, Variance of X = 25. Two regression equations: 5X - Y - 22 = 0 and ...
[DOC File]Present financial position and performance of the firm
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There are two traditional measures of business risk, the standard deviation about the mean or expected value, and the coefficient of variation. Using our notation above, the standard deviation associated with the net cash flows generated by the project in the ith year, assuming a …
[DOC File]Standard deviation - 物理系
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The coefficient of variation of a sample is the ratio of the standard deviation to the mean. It is a dimensionless number that can be used to compare the amount of …
[DOC File]OCR Document
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St. Deviation Variance() Coefficient of Variation. Standard deviations of the data sets that use different scale and units and/or have significantly different means should not be compared. In such a case we use . Coefficient of Variation (CV) or Example: A sample of 100 guppy fish had a mean lengths of 22 mm with a standard deviation of 8 mm.
CHAPTER 1
(f) 8 The coefficient of variation is the expected return divided by the standard deviation of the expected return. (f) 9 Nominal rates are averages of all possible real rates. (f) 10 The risk premium is a function of the volatility of operating earnings, sales volatility and inflation.
[DOC File]Coefficient of Variation:
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coefficient of variation. The coefficient of variation expresses the standard deviation as a percentage of what is being measured relative to the sample or population mean. If x bar and s represent the sample mean and the sample standard deviation, then the coefficient of variation (CV) is …
[DOCX File]Describing and Interpreting Data
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The standard deviation is the average variation of the data values from the mean of the values and is the most commonly used measure of variation. ... The coefficient of variation shows the variation of the data relative to the mean and is useful in comparing the variation of two data sets. Note that it is always expressed as a percentage.
[DOC File]Relationship Between Mean Yield, Coefficient of Variation,
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Coefficients of variation were first employed as relative measures of variation. The CV is defined as the standard deviation expressed as a percentage of the mean (Tippett, 1952; Senders, 1958; Steel et al. 1997; Lewis, 1963). Mills (1924) indicated that the CV is affected by the value of the mean, as well as by the size of the standard deviation.
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