The Five-Number Summary for Midterm Scores (Number of Points; the Maximum

question 288

Essay

The five-number summary for midterm scores (number of points; the maximum possible
score was 50 points) from an intro stats class is: $$\begin{array} { | c | c | c | c | c | } \hline \text { Min } & \mathrm { Q } 1 & \text { Median } & \text { Q3 } & \text { Max } \\\hline 16.5 & 32 & 39 & 43.5 & 48.5 \\\hline\end{array}$$
a. Would you expect the mean midterm score of all students who took the midterm to be
higher or lower than the median? Explain.
b. Based on the five-number summary, are any of the midterm scores outliers? Explain.

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Definitions:

Initial Impression

The first and immediate perception or judgment formed about someone or something.

Working Memory

Information being actively processed by rehearsal systems.

Sensory Memory

The memory of an event that is recorded by sensory neurons that lasts for a very brief time after the event ends.

Iconic Memory

The visual memory of an event stored in the sensory register.