Read carefully and answer choose whether the sentence is true or false.

1. 1. A model with increased complexity will have low variance.
2. 2. Among two probability models M1 and M2, with Brier score 0.21 and 0.19 respectively, model M2 is the better calibrated one.
3. 3. The validation set is used for model and/or feature selection.
4. 4. In a basketball game trailing by 2, you find yourself all alone in transition with 3 seconds left. Taking the three-point shot in transition all alone gives you better chances at winning the game as compared to tying the game with a wide open layup.
5. 5. Using a hypothesis test we can accept or reject the null hypothesis with certainty.