efficiency variance, spending variance, production volume variance, variable and fixed components
Chat with our AI personalities
Standard deviation is the square root of the variance. Since you stated the variance is 4, the standard deviation is 2.
- 4
2.12.12.12.1
Variance
The F-ratio is a statistical ratio which arises as the ratio of two chi-square distributions.If X and Y are two random variables which are independent and approximately normally distributed, then their variances have chi-squared distributions. The ration of these chi-square distributions, appropriately scaled, is called the F-ratio.The F-ratio is used extensively in analysis of variance to determine what proportion of the variation in the dependent variable is explained by an explanatory variable (and the model being tested).