You are given the following returns on "the market" and stock f during the last three years. we could calculate beta using data for years 1 and 2 and then, after year 3, calculate a new beta for years 2 and 3. how different are those two betas, i.e., what's the value of beta 2 - beta 1? (hint: you can find betas using the rise-over-run method, or using your calculator's regression function.)
a) 6.78%
b) 7.92%
c) 8.20%
d) 9.15%