Here is a multiple-choice question: Suppose you have two options:

A gives you 100 eggs, with a 50% chance of being golden eggs and a 50% chance of being rotten eggs.
B gives you a hen that lays an egg every day, with a 50% chance of laying a golden egg and a 50% chance of laying a rotten egg.

How would you choose? A is the contract, B is the grid contract robot.