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.

WASHINGTON— The Supreme Court agreed Monday to decide whether people picked up on immigration violations also can face charges of identity theft if they use Social Security and other identification ...

Mac 911 How to use two eSIMs in an iPhone at the same time Apple sells its iPhones in a few configurations, but you can use two virtual SIMs in the last several years of models.