Exhibit 7-3
USE THE FOLLOWING INFORMATION FOR THE NEXT PROBLEM(S)

Exhibit 7-3
USE THE FOLLOWING INFORMATION FOR THE NEXT PROBLEM(S) $$\begin{array} { c c c c } \text { Period } & \begin{array} { c } \text { Return } \\\text { of Radtran } \\\text { (Percent) }\end{array} & \begin{array} { c } \text { Ppecific Index } \\\text { (Percent) }\end{array} & \begin{array} { c } \text { True } \\\text { General Index } \\\text { (Percent) }\end{array} \\\hline 1 & 10 & 12 & 15 \\2 & 12 & 10 & 13 \\3 & - 10 & - 8 & - 8 \\4 & - 4 & - 10 & 0\end{array}$$
-Refer to Exhibit 7-3. What is the covariance between Radtron and the true index?

A) 57.30
B) 86.50
C) 88.00
D) 92.50
E) 107.90