The following table shows realized rates of return for three stocks. Part 1 Attempt 1 What is the arithmetic average return for stock C? What is the covariance of returns for stocks B and C? art 4 Attempt 1/10 for 10 pts. What is the mean return of a portfolio with 40% invested in stock A,50% in stock B and the remainder in stock C ? Part 5 * Attempt 1/10 for 10 pts. What is the standard deviation of a portfolio with 40% invested in stock A, 50% in stock B and the remainder in stock C? The following table shows realized rates of return for three stocks. Part 1 Attempt 1 What is the arithmetic average return for stock C? What is the covariance of returns for stocks B and C? art 4 Attempt 1/10 for 10 pts. What is the mean return of a portfolio with 40% invested in stock A,50% in stock B and the remainder in stock C ? Part 5 * Attempt 1/10 for 10 pts. What is the standard deviation of a portfolio with 40% invested in stock A, 50% in stock B and the remainder in stock C