Permalink Submitted by Anonymous on October 29, 2010

On further thought, you're right: they contain 2v and v OR v and v/2. The mistake in the author's reasoning is to consider the expectation based on a variable starting point. This will lead to a factor of 4 in the two sums of money (2x and 1/2x).

## I agree

On further thought, you're right:

they contain 2v and v OR v and v/2.The mistake in the author's reasoning is to consider the expectation based on a variable starting point. This will lead to a factor of 4 in the two sums of money (2x and 1/2x).