1. play the game 100 times using https://montyhall.io/. You get to decide which strategy to use and when. For example, you may use only one strategy, you may randomly mix it or you can do one strategy 50 times and then try the other strategy 50 times. When complete take a screen shot
2. Use a probability tree to find the exact probabilities for the switch strategy. Start by having you pick with equal probability the car, goat1 or goat2. If you had picked the car in the first round, then with 100% probability, you will get a goat the second round. Since Monty will reveal where the other goat is, if you had picked a goat, then with 100% probability, you will get the car the second round.

For the stay strategy, there is really only one round, as you don't use the information Monty provides. You have a one third chance of getting the car and that's how it ends.