You find a certain stock that had returns of 13 percent, −20 percent, 21 percent, and 12 percent for four of the last five years. The average return of the stock over this period was 9.3 percent. Required:
a. What was the stock’s return for the missing year?
b. What is the standard deviation of the stock’s returns?

Your team has identified the risks on the project and determined their risk score. the team is in the midst of determining what strategies to put in place should the risks occur. after some discussion, the team members have determined that the risk of losing their network administrator is a risk they'll just deal with if and when it occurs. although they think it's a possibility and the impact would be significant, they've decided to simply deal with it after the fact. which of the following is true regarding this question? a. this is a positive response strategy. b. this is a negative response strategy. c. this is a response strategy for either positive or negative risk known as contingency planning. d. this is a response strategy for either positive or negative risks known as passive acceptance.

Alarge tank is filled to capacity with 500 gallons of pure water. brine containing 2 pounds of salt per gallon is pumped into the tank at a rate of 5 gal/min. the well-mixed solution is pumped out at the same rate. find the number a(t) of pounds of salt in the tank at time t.

On january 2, 2018, bering co. disposes of a machine costing $34,100 with accumulated depreciation of $18,369. prepare the entries to record the disposal under each of the following separate assumptions. exercise 8-24a part 2 2. the machine is traded in for a newer machine having a $50,600 cash price. a $16,238 trade-in allowance is received, and the balance is paid in cash. assume the asset exchange has commercial substance.