t Question 1 072 pts What data processing is this code for? from sklearn. impute import IterativeImputer from sklearn. linear_model import LinearRegression df = pd. DataFrame([[1, 2, np.nan), [3, 4, 3), [np.nan, 6, 5), [8, 8, 711) # 1) create a imputer instance imp = Iterative Imputer(estimator=LinearRegression()) # 2) train (update) the imputer with fit method # 3) transform the data to the clean one t_df = imp.fit_transform(df) print(df) print (pd.DataFrame(t_df)) Data Cleaning Data Reduction Data Transformation Data Discretization