a. How many portfolios are possible?

b. How many of these portfolios contain MRK but not PFE?

c. How many of these portfolios contain at most one stock priced above $60?

Dogs of the Dow The “Dogs of the Dow” refer to the stocks listed on the Dow with the highest dividend yield. Exercises are based on the following table, which shows the top 10 stocks of the “Dogs of the Dow” list in November 2011:

You decide to make a small portfolio consisting of a collection of 6 of the top 10 Dogs of the Dow.
 

Symbol T VZ MRK PFE JNJ INTC KFT DD CVX MCD Company AT&T Verizon Merck Pfizer Johnson & Johnson Intel Kraft DuPont Chevron McDonald's Price 29.46 37.52 34.47 20.08 64.86 24.75 35.48 49.81 108.86 94.60 Yield 5.84% 5.20% 4.41% 3.98% 3.52% 3.39% 3.27% 3.29% 2.87% 2.58%