The expected return of a portfolio of risky securities ______ a weighted average of the securities returns. The standard deviati
on of a portfolio of risky securities ____ a weighted average of the securities standard deviations when the correlation is less than 1 a. is;is b.is not ;is c.is;is not d.is not; is not
The expected return of a portfolio of risky securities __is____ a weighted average of the securities returns. The standard deviation of a portfolio of risky securities __is not__ a weighted average of the securities standard deviations when the correlation is less than 1
Note:
The expected return of a portfolio of risky securities is a weighted average of the securities' returns.
The standard deviation is the square root of the variance which is a weighted sum of the variance of the individual securities and the covariances between securities.
Mechanical teacher was just a machine or computer which can teach but according to the level set without any kind of emotions whereas human teacher can make learning more easier according to the level of students who can understand their emotions as well.
