How to Create array formulas for stock returns in MS Excel

Looking for a primer on how to create and work with array formulas in Microsoft Office Excel? You've come to the right place. In this free video tutorial from everyone's favorite MS Excel guru, YouTube's ExcelIsFun, the 14th installment in his series of Excel array formula series, you'll learn how to create array formulas for individual stock return and standard deviation given different assumed states of the future economy.