BREAKING DOWN 'Mean-Variance Analysis'. There are two major factors in mean variance analysis: variance and expected return. 1  Variance represents how spread out the data set numbers are, such as the variability in daily or weekly returns of an individual security. 2  The expected return is a subjective probability assessment on the return of the stock.
A sitcom is a situation comedy.. It's used to describe a TV or radio show with a set cast of characters that find themselves in humorous or unusual situations. A sitcom is a situation comedy.. It's used to describe a TV or radio show with a set cast of characters that find themselves in humorous or unusual situations.
What is the longest running sitcom? Popular sitcoms making it to 7, or even 10, seasons are not particularly rare. Many popular shows-such as Seinfeld, Everybody Loves Raymond or Friends - are able to keep the central cast together and maintain narrative momentum to hit that landmark, or at least get close.