Answer / Dinesh Pal Singh

This can be approached using a classification algorithm like logistic regression or decision trees. Variables such as income, location, profession, and gender would serve as predictors while the purchase behavior acts as the target variable. Model performance is evaluated through metrics like accuracy, precision, recall, and F1 score.

What cross validation technique would you use on time series data set? Is it k-fold or loocv?

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What is the procedure to check the cumulative frequency distribution of any categorical variable?

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