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Assume that an individual can either invest all of his resources in one of the two securities, A or B; or, alternatively, he can diversify his investment between the two. The distributions of the returns are as follows:
Security A Security B
Return Probability Return Probability
-10 1/2 -20 1/2
50 1/2 60 1/2
Assume that the correlation between the returns from the two securities is zero, and answer the following questions:
Calculate each security's expected return, variance and standard deviation.
Calculate the probability distribution of the returns on a mixed portfolio comprised of equal proportions of securities A and B. Also calculate the portfolio's expected return, variance and standard deviation.
Calculate the expected return and the variance of a mixed portfolio comprised of 75% of security A and 25% of security B.
Determine the number of police officers that should be scheduled to begin the 8-hour shifts at each of the six times (8:00 A.M., noon, 4:00 P.M., 8:00 P.M., midnight, and 4:00 A.M.) to minimize the total number of officers required.
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Voice App is a midsize software company that specializes in voice recognition software. Due to rising costs of maintaining IT technical support, your director is considering outsourcing your technical support services.
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Concerning the creation of tables from an REA diagram, which of the following is false?
Arthur buys $2,000 worth of stock. Six months later, the value of the stock has risen to $2,200 and Arthur buys another $1,000 worth of stock. After another eight months, Arthur’s holdings are worth $2,700 and he sells off $800 of them. Ten months la..
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