1. Below are recent Intro Stats quiz scores in percent form.
55 57 59 60 63 65 70 72 80 81 81 83 84 85 86 88 87 89 90 93
a. Find the five numbers summary (Min, Q1, Median, Q3, Max) and construct a
box plot of the data.
b. Calculate the mean. Interpret this value in context with units.
C. Which measure of center-the median or the mean-describes the typical student
score for that quiz ? Justify your answer.
d. Find the interquartile range. Interpret this value in context with units.
I
e.
Calculate the standard deviation. Interpret this value in context with units.
f. How many standard deviations is 90 away from the mean?