Answer
a) The highest ozone level evr recorded was in March.
b) The month with the largest IQR is February.
c) The month with the smallest range is June.
d) Ozone levels in June are higher in median than those of January however the distribution of January is more spread than that of June.
e) The ozone levels increase in the first 3 months of the year reaching their highest value on March with 400 ppb then they start decreasing until they reach their lowest levels in month 10 with almost 290 ppb then they start increasing again.
Work Step by Step
All the results are concluded from the boxplots