Data from the Environmental Protection Agency website for Ogden-Clearfield is provided below for the two pollutants Ozone and NO2. The data is for the year 2019 and each data point is the maximum value for that pollutant for that particular month.

Month	Ozone	NO2
Jan	45	42
Feb	80	48
Mar	38	45
Apr	28	64
May	25	84
June	25	84
July	29	143
Aug	35	147
Sept	40	87
Oct	39	74
Nov	42	39
Dec	47	33

Below are the scatter plot and residual plot for this dataset.

\f2019 Ozone-NO2 Scatter Plot Monthly Maximum Reading 140 120 100 80 60 40 20 0 20 25 30 35 40 45 50 55