4 ms·
A dollar times a dollar is a dollar squared. You don't need a spec for that! For example, if you have a random variable that's in dollars, its variance would h
by creata 4y ago
A dollar times a dollar is a dollar squared. You don't need a spec for that!
For example, if you have a random variable that's in dollars, its variance would have units of dollars squared. People consider the variance of dollar estimates all the time.
- henrydark 4y agoAnd dollars times pounds is similarly a unit of covariance