Iris Dataset downloaded from: https://archive.ics.uci.edu/ml/datasets/Iris
Singapore AirBnB downloaded from: https://www.kaggle.com/jojoker/singapore-airbnb
Titanic Dataset downloaded from: https://www.kaggle.com/c/titanic-dataset/data
Insurance Dataset downloaded from: https://www.kaggle.com/gloriousc/insurance-forecast-by-using-linear-regression/data