variance - covariance - how to calculate and its uses
Square the standard deviation and you will have the variance.
How do we calculate variance
Standard deviation = square root of variance.
The standard deviation is the square root of the variance. So, if variance = 03 = 3 the std dev = sqrt(3) = 1.732
how to calculate budget variance percentage?
variance - covariance - how to calculate and its uses
actual budget/budget = variance%
Variance = 100*(Actual - Budget)/Budget
Square the standard deviation and you will have the variance.
How do we calculate variance
Standard deviation = square root of variance.
There only needs to be one data point to calculate variance.
The standard deviation is the square root of the variance. So, if variance = 03 = 3 the std dev = sqrt(3) = 1.732
look in a maths dictionary
You need to use the variance and covariance functions in Excel 1. Calculate the covariance of the stock returns with respect to an index 2. Calculate the variance of the index 3. Divide the first number by the second. See the related link for a spreadsheet
In a study using 9 samples, and in which the population variance is unknown, the distribution that should be used to calculate confidence intervals is