For each of the cases given in the below table, use the capital asset pricing model to determine the required return.

$$\begin{array}{cccc} \text { Case } & \begin{array}{c} \text { Risk-free } \\ \text { rate, } R_F \end{array} & \begin{array}{c} \text { Market } \\ \text { return, } r_m \end{array} & \text { Beta, } b \\ \hline \text { A } & 5 \% & 8 \% & 1.30 \\ \text { B } & 8 & 13 & 0.90 \\ \text { C } & 9 & 12 & -0.20 \\ \text { D } & 10 & 15 & 1.00 \\ \text { E } & 6 & 10 & 0.60 \end{array}$$

How would you use a return statement in a void function?

Define return and risk. Discuss the trade-off between them.

A stock’s returns have the following distribution: $$ \begin{matrix} \text{Demand for the Company's Products} & \text{Probability of This Demand Occurring} & \text{Rate of Return if This Demand Occurs}\\ \text{Weak} & \text{0.1} & \text{(30\\%)}\\ \text{Below average} & \text{0.1} & \text{(14)}\\ \text{Average} & \text{0.3} & \text{11}\\ \text{Above average} & \text{0.3} & \text{20}\\ \text{Strong} & \text{0.2} & \text{45}\\ \text{ } & \text{1.0}\\ \end{matrix} $$ Calculate the stock’s expected return, standard deviation, and coefficient of variation.

Compute the rate of return on the following investment.

$$\begin{matrix} \text{Year} & \text{Cash Flow}\\ \text{0} & \text{-\$10,000}\\ \text{1} & \text{0}\\ \text{2} & \text{3,000}\\ \text{3} & \text{3,000}\\ \text{4} & \text{3,000}\\ \text{5} & \text{3,000}\\ \end{matrix}$$

Bonds of Zello Corporation with a par value of $1,000 sell for$960, mature in five years, and have a 7% annual coupon rate paid semiannually. Calculate the: (1) Current yield. (2) Yield to maturity. (3) Horizon yield (also called realized compound return) for an investor with a threeyear holding period and a reinvestment rate of 6% over the period. At the end of three years the 7% coupon bonds with two years remaining will sell to yield 7%.

What does the return of the dove with an olive leaf tell Noah?

A method’s name, parameters, and return type are also known as its _______.

Six years ago the Singleton Company issued $20$-year bonds with a $14 \%$ annual coupon rate at their $\$ 1,000$ par value. The bonds had a $9 \%$ call premium, with $5$ years of call protection. Today Singleton called the bonds. Compute the realized rate of return for an investor who purchased the bonds when they were issued and held them until they were called. Explain why the investor should or should not be happy that Singleton called them.

Stocks A and B have the following historical returns:" $$ \begin{matrix} \text{Year} & \text{Stock A's Returns, }{r_A} & \text{Stock B's Returns, }{r_B}\\ \text{2011} & \text{(18.00\\%)} & \text{(14.50\\%)}\\ \text{2012} & \text{33.00} & \text{21.80}\\ \text{2013} & \text{15.00} & \text{30.50}\\ \text{2014} & \text{(0.50)} & \text{(7.60)}\\ \text{2015} & \text{27.00} & \text{26.30}\\ \end{matrix} $$ a. Calculate the average rate of return for each stock during the period 2011 through 2015. b. Assume that someone held a portfolio consisting of 50% of Stock A and 50% of Stock B. What would the realized rate of return on the portfolio have been each year? What would the average return on the portfolio have been during this period? c. Calculate the standard deviation of returns for each stock and for the portfolio. d. Calculate the coefficient of variation for each stock and for the portfolio. e. Assuming you are a risk-averse investor, would you prefer to hold Stock A, Stock B, or the portfolio? Why?

A child's electronic toy is supplied by three 1.58-V alkaline cells having internal resistances of $0.0200\ \Omega$ in series with a 1.53-V carbon-zinc dry cell having a $0.100-\Omega$ internal resistance. The load resistance is $10.0\ \Omega.$ (a) Draw a circuit diagram of the toy and its batteries. (b) What current flows? (c) How much power is supplied to the load? (d) What is the internal resistance of the dry cell if it goes bad, resulting in only 0.500 W being supplied to the load?

Suppose rocket traveler Amelia has a clock made on Earth. Every year on her birthday she sends a light signal to brother Casper on Earth. (a) At what rate does Casper receive the signals during Amelia’s outward journey? (b) At what rate does he receive the signals during her return journey? (c) How many of Amelia’s birthday signals does Casper receive during the journey that he measures to last 20 years?

Hot exhaust gases of an internal combustion engine are to be used to produce saturated water vapor at 2 MPa pressure. The exhaust gases enter the heat exchanger at $400^\circ C$ at a rate of 32 kg/min while water enters at $15^\circ C.$ The heat exchanger is not well insulated, and it is estimated that 10 percent of heat given up by the exhaust gases is lost to the surroundings. If the mass flow rate of the exhaust gases is 15 times that of the water, determine (a) the temperature of the exhaust gases at the heat exchanger exit and (b) the rate of heat transfer to the water. Use the constant specific heat properties of air for the exhaust gases.

When can a food handler diagnosed with jaundice return to work?