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Suppose we have the following returns for large-company stocks and Treasury bills over a six-year period: 0. Calculate the arithmetic average returns for large-company stocks and T-bills over this period. (Do not round intermediate calculations and enter your answers as a percent rounded to 2 decimal places, e.g., 32.16.) b. Calculate the standard deviation of the returns for large-company stocks and T-bilis over this period. (Do not round intermediate calculations and enter your answers os o percent rounded to 2 decimal ploces, e.g., 32.16.) c-1. Calculate the observed risk premium in each year for the large-company stocks versus the T-bills. What was the average risk premium over this period? (A negative enswer should be indicated by o minus sign. Do not round intermediate calculations ond enter your answer as a percent rounded to 2 decimal places, e.9. 32.16.) c-2. Calculate the observed risk premium in each year for the large-company stocks versus the T-bills. What was the standard deviation of the risk premium over this period? (Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal ploces, e.g. 32.16.) Suppose we have the following returns for large-company stocks and Treasury bills over a six-year period: 0. Calculate the arithmetic average returns for large-company stocks and T-bills over this period. (Do not round intermediate calculations and enter your answers as a percent rounded to 2 decimal places, e.g., 32.16.) b. Calculate the standard deviation of the returns for large-company stocks and T-bilis over this period. (Do not round intermediate calculations and enter your answers os o percent rounded to 2 decimal ploces, e.g., 32.16.) c-1. Calculate the observed risk premium in each year for the large-company stocks versus the T-bills. What was the average risk premium over this period? (A negative enswer should be indicated by o minus sign. Do not round intermediate calculations ond enter your answer as a percent rounded to 2 decimal places, e.9. 32.16.) c-2. Calculate the observed risk premium in each year for the large-company stocks versus the T-bills. What was the standard deviation of the risk premium over this period? (Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal ploces, e.g. 32.16.)