Instruction 3-9
Given Below Are the Rating and Performance Scores

question 123

Short Answer

Instruction 3-9
Given below are the rating and performance scores of 15 laptop computers.
$\begin{array}{|l|l|l|l|l|l|l|l|l|l|l|l|l|l|l|}\hline\text { Performance } & 115 & 191 & 153 & 194 & 236 & 184 & 184 & 216 & 185 & 183 & 189 & 202 & 192 & 141 \\\hline \text { Overall } & 74 & 78 & 79 & 80 & 84 & 76 & 77 & 92 & 83 & 78 & 77 & 78 & 78 & 73 \\\text { Rating }&\\\hline\end{array}$
-Referring to Instruction 3-9,what is the sample covariance between the performance scores and the rating?

---

Definitions:

Radio Shack

A retail chain that was historically known for selling electronics parts and products, encountering significant business challenges in the digital age.

Emails

Electronic messages sent over a network to communicate information, ideas, or personal messages.

Feedback

Information provided regarding aspects of one’s performance or behavior, which can be used for improvement.

Essential Links

Critical connections or relationships that are fundamental to the functioning or success of a system, process, or structure.