Part 2:2.[20 marks] Using the original airqualty.csva. Create a new data set called air_median from the air data set. Impute the missing solarradiation values with the MEDIAN of the non-missing radiations in the air_mediandataset.b. Create a new data set called air_mean from the air_median data set. Impute the missingtemperature values with the mean temperature for the month that the temperature ismissing from in the air_mean data set. For example, impute missing month 5temperature values with the mean of the non-missing temperatures for month 5.c. Create a new data set called air_ratio from the air_mean data set. Impute the missingvalues of the Ozone variable using ratio imputation in the air_ratio data set