Answer and Explanation:
(A) E(P) = (0.6) × ($2800) + (0.4) × ($2250)
= $1680+$900
= $2,580
E(S) = (0.6) × (1.40)+(0.4) × (1.5)
= 0.84 + 0.60
= $1.44
Var(S) = (0.6)(1.40 - 1.44)² + (.4)(1.50 - 1.44)²
= .00096+.00144
= 0.0024.
Cov(P,S) = (0.6)(2800-2580)(1.4-1.44) + (0.4)(2250-2580)(1.5-1.44)
= -5.28-7.92
= -13.20
b = Cov(P,S)/Var(S)
= -13.20/.0024
= -£5,500.
there is a negative exposure. as the pound gets stronger/weaker against the dollar the dollar value of british holding goes higher.
(B) b²Var(S) = (-5500)²(.0024) = 72,600($)²
(C). i would Buy 5,500 forward to hedge exchange risk exposure. By doing this, i can eliminate the volatility of the dollar value of your British asset that is due to the volatility of the exchange rate