student feedback in chartio:
I think there was a minor error with 11 Taking the constant out -> there is no Bi\,2 (its only one factor)) otherwise great explanation of the topic
he Portfolio Variance Exercise (#16) contains some typos:\ Var(f_1) -> Var(r_1)\ Var(f_2) -> Var(r_2)\ ...
student feedback in chartio: I think there was a minor error with 11 Taking the constant out -> there is no Bi\,2 (its only one factor)) otherwise great explanation of the topic
he Portfolio Variance Exercise (#16) contains some typos:\ Var(f_1) -> Var(r_1)\ Var(f_2) -> Var(r_2)\ ...