The Data Below Are the Number of Absences and the Final

question 89

Multiple Choice

The data below are the number of absences and the final grades of 9 randomly selected students from a statistics class. Calculate the correlation coefficient, r. $$\begin{array} { l | c | c | c | c | c | c | c | c | c | } \text { Number of absences, } \mathrm { x } & 0 & 3 & 6 & 4 & 9 & 2 & 15 & 8 & 5 \\\hline \text { Final Grade, } \mathrm { y } & 93 & 81 & 75 & 77 & 66 & 87 & 50 & 71 & 77\end{array}$$

• A)-0.991
• B)-0.888
• C)-0.918
• D)-0.899

---

Definitions:

Threshold

A level, point, or value above which something is true or will occur and below which it is not or will not.

Lacrimal Glands

Glands located in the upper outer region of the orbits that produce tears for lubrication and protection of the eye.

Oculomotor Nerve

The third cranial nerve responsible for controlling most of the eye's movements, including constriction of the pupil and maintaining an open eyelid.

Superomedial Corner

A term often used in anatomy to describe the upper and inner corner of a structure or organ.