Model Outputs:

1.Linear Regression:
    Mean:  5.037482786117751
    Standard Deviation:  1.0594382405606948

2.Decision Tree Regressor
    Mean:  4.271935999042942
    Standard Deviation:  0.7775257916406063

3.Random Forest Regressor
    Mean:  3.301961620269954
    Standard Deviation:  0.7040608050208857