Exhibit 81
USE THE INFORMATION BELOW FOR THE FOLLOWING PROBLEM(S)

Exhibit 8.1
USE THE INFORMATION BELOW FOR THE FOLLOWING PROBLEM(S) $$\begin{array}{l}\quad\quad\quad\quad\quad\quad\quad\quad\text { Rates of Return }\\\begin{array} { c c c } \text { Year } & \text { RA Computer } & \text { Market Index } \\\hline 1 & 13 & 17 \\2 & 9 & 15 \\3 & - 11 & 6 \\4 & 10 & 8 \\5 & 11 & 10 \\6 & 6 & 12\end{array}\end{array}$$
-Refer to Exhibit 8.1. The equation of the characteristic line for RA is

A) R_RA = 11.63 + 1.2195R_MI
B) R_RA = -7.98 + 1.1023R_MI
C) R_RA = -9.41 + 1.3893R_MI
D) R_RA = -4.92 - 0.7715R_MI
E) R_RA = 4.92 + 0.7715R_MI