Mr Kishore invested in equity shares of Deepak Aluminium Ltd., Its anticipated returns and associated probabilities are given below. est time IE 012 Return x Probab -15 0.05 -10 0.1 5 0.15 10 0.25 15 0.3 20 0.1 30 0.05 You are required to calculate the expected rate of return and risk in terms of Standard deviation