Answer:
a. What is the average annual return? 
average annual return (mean) = (-4.5% + 28.1% + 12.2% + 3.7%) / 4 = 9.875%
b. What is the variance of the stock's returns? 
variance = [(-4.5% - 9.875%)² + (28.1% - 9.875%)² + (12.2% - 9.875%)²) + (3.7% - 9.875%)²] / 4 = (206.64 + 332.15 + 5.41 + 38.13) / 4 = 582.33 / 4 = 145.5825
c. What is the standard deviation of the stock's returns?
standard deviation = √145.5825 = 12.06%
 
        
             
        
        
        
Answer:
The approximate yield to maturity is 9.43%.
Explanation:
 
        
             
        
        
        
Answer:
0.079
Explanation:
Price elasticity of demand using midpoint formula can be calculated as follows
Formula
Elasticity of demand = (change in quantity/average quantity)/(change in price/average price)
Calculation
Elasticity of demand = (600/10,900)/(-2.1/3.05)
Elasticity of demand =-0.055 / -0.688
Elasticity of demand =-0.079
working
Change in price (2-4.1) = -2.1  
Average price (2+4.1)/2=3.05
Change in quantity (11,200-10600) = 600
average quantity (11,200+10,600)/2 = 10,900
  
The elasticity of demand is inelastic as the elasticity is below 1.
 
        
             
        
        
        
Answer:
The correct answer is option (B).
Explanation:
According to the scenario, the given data are as follows:
For Jan.1,2020 value = $626,400
Interest rate = 7%
So, we can calculate the amount of bond interest expense by using following formula:
Interest Expense = Carrying Value × Market Interest Rate
By putting the value of following
Interest expense = $626,400 × 7%
= $626,400 × 0.07
= $43,838
Hence, the amount of bond interest expense to be recognized on December 31, 2020, is $43,838.
 
        
             
        
        
        
As a result of the record amount of grapes, the equilibrium price decreases while the equilibrium quantity increases. Please find attached the required graph. 
<h3>What is the impact of the record amount of grapes?</h3>
If there is a record amount of grapes produced, the amount of wine produced would increase. This is because grapes are an input used in the production of wine. 
As a result, the supply of wine would increase. This would lead to a shift to the right of the supply curve for wine.  the equilibrium price decreases while the equilibrium quantity increases. 
To learn more about supply curves, please check: brainly.com/question/26073189