please explain your answer;

A student is comparing between two stocks to invest in: Stock A and Stock B. The following are the stock returns (in dollars) in the last 10 months (sample). Monthly Returns Stock A - Stock B Q5) Compare both stocks in terms of risk and return. Which stock should the student invest in? 585 960 Note: base your answer on calculating the average returns (of both stocks), standard deviations, and coefficient of variations of both stocks. 636 780 504 750 1080 450 675 825 525 885 765 855 885 255 585 360 510 780 Q6) Calculate the 80th percentile of stocks A and B