Statistical word problem

Question

Suppose a mathematician computed the expected value of winnings for a person playing different games in a casino. What would you expect to be true for all expected values for these games?

Answer 1

Marcelino,

 

That they would all be negative since the house has to take its cut on average to pay its bills.

 

Of course, a casino could run a "temporary" promotion on one of its games to create excitement by allowing a positive average value.  Of course, it has to do this within the rules set by its gaming commission.