In this lecture we started to analyze the spread and variability of our data by looking at the range and interquartile range.
We were also introduced to two new charts - the histogram and the boxplot.
For your challenge, you asked to draw the boxplot for the dataset:
{6, 7, 9, 8, 7, 6, 3, 8, 7, 6,7 5, 6, 10, 7, 8, 10, 9, 4, 11, 4, 12, 4, 7}
Here is the answer so that you can check it against your own.
Min: 3
Max: 12
Q1: 6
Q2: 7
Q3: 8.5
The dataset has a very slight positive skew.
The interquartile range has a very slight positive skew.
Here is my attempt, I sorted the array beforehand, calculated the interquartile values that are 6, 7 and 8.5 and whiskers should be 3 and 12
This is the graphic representation
---------X---------[----|-----]------------X
–1--2–3--4–5--6–7--8–9--10-11-12
