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# MuckersMate

Member Since 16 Sep 2012
Offline Last Active Mar 08 2013 01:46 PM

### In Topic: Please pass the salt

28 February 2013 - 09:42 AM

Assumptions

1. Author had the salt to start with, with Amber sitting on the opposite side of the table.

3. Amber handed the pepper directly to Chris, bypassing Becky

Therefore, Salt from Author to Amber = 2 units. (He had to 'slide' it to her because she was too far away to pass it directly).

Salt from Amber to Chris = 1 unit (passed directly)

Pepper from Amber to Becky = 1 unit.

Therefore

2 = 2????

### In Topic: Whatchya Gonna Do (2 goats and a car)

16 September 2012 - 06:54 PM

No, I disagree with your odds. The puzzle is assuming that the host knows where the car is and also assumes that the host will open one of the losing doors everytime no matter what you chose.

When you first select a door, you have a 1/3 chance of picking the car. (Or, a 2/3 chance of picking wrong). If you switch, you now have a 2/3 chance of winning the car. The host helps you win by always eliminating a wrong choice.

No, I disagree with your odds. The puzzle is assuming that the host knows where the car is and also assumes that the host will open one of the losing doors everytime no matter what you chose.

When you first select a door, you have a 1/3 chance of picking the car. (Or, a 2/3 chance of picking wrong). If you switch, you now have a 2/3 chance of winning the car. The host helps you win by always eliminating a wrong choice.

No, I disagree with your odds. The puzzle is assuming that the host knows where the car is and also assumes that the host will open one of the losing doors everytime no matter what you chose.

When you first select a door, you have a 1/3 chance of picking the car. (Or, a 2/3 chance of picking wrong). If you switch, you now have a 2/3 chance of winning the car. The host helps you win by always eliminating a wrong choice.

Correct.

Variable change.

### In Topic: Whatchya Gonna Do (2 goats and a car)

16 September 2012 - 05:33 PM

Swap.
33.3 % before for the girl, 66.6% for the host.

The odds haven't changed, but the host is offering her his 66.6%probability.

Take it.