The Data Below Represent the Numbers of Absences and the Final

question 65

Essay

The data below represent the numbers of absences and the final grades of 15 randomly selected students from a statistics class. Construct a scattergram for the data. Do you detect a trend? $$\begin{array}{l}\begin{array} { c c c } \text { Student}&\text { Number of Absences}&\text { Final Grade as a Percent }\\ 1 & 5 & 79 \\2 & 6 & 78 \\3 & 2 & 86 \\4 & 12 & 56 \\5 & 9 & 75 \\6 & 5 & 90 \\7 & 8 & 78 \\8 & 15 & 48 \\9 & 0 & 92 \\10 & 1 & 78 \\11 & 9 & 81 \\12 & 3 & 86 \\13 & 10 & 75 \\14 & 3 & 89 \\15 & 11 & 65\end{array}\end{array}$$

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Definitions:

Small-gauge IV Catheter

A thin tube inserted into a vein, used for the infusion of fluids or medications, with a small diameter for minimal vein trauma.

IV Bolus

The rapid administration of a medication or fluid directly into the bloodstream via a vein.

Z-track Method

An injection technique used to minimize leakage of medication into the subcutaneous tissue and ensure the medicine is delivered into the muscle.

Subcutaneous Tissue

The layer of tissue lying immediately under the skin, containing fat and connective tissues that store energy and provide insulation and cushioning.