1- What is the standard deviation of the returns on each company's stock (Company A, and B) (write all formulas) (5 Marks). 2- Of these two stocks, which is riskier? Explain why. (2 marks). Company A Company B Re b 1- What is the standard deviation of the returns on each company's stock (Company A, and B) (write all formulas) (5 Marks). 2- Of these two stocks, which is riskier? Explain why. (2 marks). Company A Company B Re b