Daniel Jassy, CFA, is an Investopedia Academy instructor and the founder of SPYderCRusher Research. He contributes to Excel and Algorithmic Trading. David Kindness is a Certified Public Accountant ...

we'll start with our data set as a given. We'll calculate the historical monthly variance of the S&P 500 Total Return index over a five-year period from August 2010 through July 2015 -- that's 60 ...

Calculating the variance for a data set can differ based on whether the set is the entire population or a sample of the population. The formula for calculating the variance of an entire population ...

If values in a data set wildly fluctuate ... OpenOffice.org Calc offers four functions for calculating variance, depending on the source of the data and how you want to handle intermingled ...

For instance, when calculating a sample variance to estimate a population ... Variance measures the degree of spread in a data set from its mean value. It shows the amount of variation that ...

Below, we'll go through the simple process of calculating ... Financial variance also plays a role in improving the budget process in the future. Actual data can inform budgeting decisions much ...

To calculate beta for a stock using this method, you first need to understand the following terms: Variance (σ2): The spread between numbers in a specific data set. In finance, the variance is ...

we'll start with our data set as a given. We'll calculate the historical monthly variance of the S&P 500 Total Return Index over a five-year period from August 2010 through July 2015 -- that's 60 ...