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Ebenezer Scrooge has invested 50% of his money in share A andthe remainder in share B. He assesses their prospects asfollows:ABExpected return (%)1618Standard deviation (%)2125Correlation between returns.6a. What are the expected return and standarddeviation of returns on his portfolio? (Do not roundintermediate calculations. Enter your answers as a percent roundedto 2 decimal places.)Expected return%Standard deviation%b. How would your answer change if thecorrelation coefficient were 0 or –.6? (Do not roundintermediate calculations. Enter your answers as a percent roundedto 2 decimal places.)CorrelationCoefficient 0CorrelationCoefficient –.6Standard deviation%%c. Is Mr. Scrooge’s portfolio better or worsethan one invested entirely in share A, or is it not possible tosay?BetterWorseNot possible to say