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variance - covariance - how to calculate and its uses
There are 7 variances associated with a budget ( which are generally calculated for controlling purposes) 1- Material Price variance 2- Material Quantity variance 3- Labor rate variance 4- Labor efficiency variance 5- Spending variance 6- Efficiency variance 7- Capacity variance
Square the standard deviation and you will have the variance.
How do we calculate variance
Standard deviation = square root of variance.