Discover the differences between standard deviation and variance, two essential metrics for investors to assess volatility and risk in financial data.

Variance is a measurement of the spread between numbers in a data set. Investors use the variance equation to evaluate a portfolio’s asset allocation.

You might have heard the idiom about the guy with his feet in a freezer and his head in an oven: on average, he's perfectly comfortable. In Excel, we do this with our data every day. Averages are ...