The interest rate your lender gives you isn't the true cost of your mortgage. Learn how to calculate your effective interest ...

Calculations and Example of Compound Return For example, suppose you started with an initial investment of $1,000. If you multiply 1,000 by 1.1 five times, that is, $1,000 x (1.1) 5, you will end ...

Calculate the standard deviation. This is simply the square root of the variance. The standard deviation = √0.2564 = 0.5064. Calculate three sigma. This is three standard deviations above the mean.