Using the data in Table 11.1, a. Compute the annual returns for a portfolio with 25% invested

Question:

Using the data in Table 11.1,
a. Compute the annual returns for a with 25% invested in North Air, 25% invested in West Air, and 50% invested in Tex Oil.
b. What is the lowest annual return for your in part a? How does it compare with the lowest annual return of the individual or portfolios in Table 11.1?

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