Instruction 3-14
Given Below Are the Rating and Performance Scores

Short Answer

Instruction 3-14
Given below are the rating and performance scores of 15 laptop computers.
$$\begin{array} { | l | l | l | l | l | l | l | l | l | l | l | l | l | l | l | } \hline \begin{array} { l } \text { Performanc } \\\text { e Score }\end{array} & 115 & 191 & 153 & 194 & 236 & 184 & 184 & 216 & 185 & 183 & 189 & 202 & 192 & 141 \\\hline \begin{array} { l } \text { Overall } \\\text { Rating }\end{array} & 74 & 78 & 79 & 80 & 84 & 76 & 77 & 92 & 83 & 78 & 77 & 78 & 78 & 73 \\\hline\end{array}$$
-Referring to Instruction 3-14,what is the sample covariance between the performance scores and the rating?