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Here are the percentage returns on two stocks. Month Digital Cheese Executive Fruit January 15 % 9 % February 4 2 March 5 5 April
Here are the percentage returns on two stocks.
Month | Digital Cheese | Executive Fruit | |||||
January | 15 | % | 9 | % | |||
February | 4 | 2 | |||||
March | 5 | 5 | |||||
April | 7 | 15 | |||||
May | 5 | 1 | |||||
June | 3 | 5 | |||||
July | 3 | 3 | |||||
August | 5 | 1 | |||||
a-1. Calculate the monthly variance and standard deviation of each stock. (Do not round intermediate calculations. Round your answers to 1 decimal places.)
b. Now calculate the variance and standard deviation of the returns on a portfolio that invests an equal amount each month in the two stocks. (Do not round intermediate calculations. Round your answers to 1 decimal places.)
c. Is the variance more or less than half way between the variance of the two individual stocks?
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