See the following figure from the 4th  Excel assignment. We…

See the following figure from the 4th  Excel assignment. We consider the investment implication of shifting portfolio weights gradually from the index fund to AMD. The right chart below plots portfolio’s standard deviation (i.e., risk) against the weight on AMD. We see an up-ward sloping line, that is, as we increase portfolio weight on AMD, the portfolio risk increases. Which of the following formula correctly calculate the slope of the line. (Note, subscript i indicates for AMD, and subscript m for “market” proxied here by the index fund.)

 In the absence of air resistance, a projectile launched at…

 In the absence of air resistance, a projectile launched at an angle of 15 o above the horizontal will have the same range as a projectile launched at which of the following angles?