21. Given the following probability distribution, what are the expected return and the standard deviation of returns for Security J? 1 O2.00 % ; 1.99% 2.30%; 1.99% O2.20%; 1.79% O2.40%; 1.79% O 2.20%: 1.99% PI 0.1 0.2 0.7 rj 7% 1%

Given the following probability distribution, what are the expected retum and the standard deviation of returns for Security J ? 2.00%;1.99% 2.30%,1.99% 2.20%;1.79% 2.40%1.79% 2.20%,1.99%