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Required: a-1. Calculate the variance and standard deviation of each stock. a-2. Which stock is riskier if held on its own? b. Now calculate the returns in each month of a portfolio that invests an equal amount each month in the two stocks. c. Is the variance more or less than halfway between the variance of the two individual stocks? Complete this question by entering your answers in the tabs below. a-1. Calculate the variance and standard deviation of each stock. a-2. Which stock is riskier if held on its own? b. Now calculate the retums in each month of a portfolio that invests an equal amount each month in the two stocks. c. Is the variance more or less than halfway between the variance of the two individual stocks? Complete this question by entering your answers in the tabs below. Which stock is riskier if held on its own? Complete this question by entering your answers in the tabs below. Now calculate the returns in each month of a portfolio that invests an equal amount each month in the two stocks. Note: Negative amounts should be indicated by a minus sign. Do not round intermediate calculations. Round your answers to 2 decimal places. Complete this question by entering your answers in the tabs below. Is the variance more or less than halfway between the variance of the two individual stocks? Is the variance more or less than halifway between the variance of the two individual stocks? Here are the returns on two stocks. Required: a-1. Calculate the variance and standard deviation o a-2. Which stock is riskier if held on its own? b. Now calculate the returns in each month of a port c. Is the variance more or less than halfway betweer Complete this question by entering your answe Is the variance more or less than halfway between th Is the variance more or less than halfway between the varianc