Exhibit 83
Use the Information Below for the Following Problem(S)

question 68

Multiple Choice

Exhibit 8.3
Use the Information Below for the Following Problem(S)
$$\begin{array} { c c c c } \text { Periad } & \begin{array} { c } \text { Return } \\\text { of Radtran } \\\text { (Percent) }\end{array} & \begin{array} { c } \text { Praxy } \\\text { Epecific Index } \\\text { (Percent) }\end{array} & \begin{array} { c } \text { True } \\\text { Ceneral Index } \\\text { (Percent) }\end{array} \\\hline 1 & 10 & 12 & 15 \\2 & 12 & 10 & 13 \\3 & - 10 & - 8 & - 8 \\4 & - 4 & - 10 & 0\end{array}$$
-Refer to Exhibit 8.3.The covariance between Radtron and the proxy index is

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

---

Definitions:

Purely Competitive Firm

An entity operating in a market that features a high level of competition and no significant barriers to entry, leading to no single firm influencing market prices.

Market Price

The existing selling or buying price for an asset or service in the specified market.

Price Taker

A price taker is a market participant that does not have the ability to dictate the price of a good or service but must accept the market price as given.

Perfectly Elastic

Describes a market situation where demand or supply is completely responsive to changes in price, resulting in infinite sensitivity.