Low Or High Bet Or Column Bet

We've been discussing the outside bets in roulette lately. Here are a couple more of them to digest:

LOW OR HIGH BET -- On this bet, the dividing line is between the top half and the bottom half of the numbers - in numerical order. And so, the numbers inclusive of 1 through 18 are in the "low" group, while 19 through 36 are in the "high" group. As you would probably guess, the zero (0) and double zero (00) are not among the numbers in the "low" group, and naturally, that's where the house derives its edge from this proposition. The chances of winning this wager are 47.37%.When the player executes the wager on the "low" or "high," he or she does not do that in boxes that are marked that way on the table. Instead, the rectangular box marked with "1 to 18" is located at the top left of the roulette layout, next to the "Even" box.

Your expectation:

Expectation (E) = [(% chance of winning) X (amount won)] + [(% chance of losing) X (-amount lost)]

E = [(18/38) X (1)] + [(20/38) X (-1)] = 18/38 + (-20/38) = -2/38 = -1/19 = -.0526 = -5.26%

COLUMN BET -- This option allows you to wager on any of three entire columns on the roulette layout. The first column has one at the top and 34 at the bottom; the second has 2 at the top and 35 at the bottom; and the third has 3 at the top and 36 at the bottom. When you place a column bet, you are doing so in a space that is provided at the bottom of each column. If any of the numbers in that particular column come up as a result of the next virtual "spin," you will come out a winner. The column bet pays off at 2 to 1, though, since the zero and double zero are not included in the potential selections, the house maintains its consistent edge. Your expectation, calculated:

Expectation (E) = [(% chance of winning) X (amount won)] + [(% chance of losing) X (-amount lost)]

E = [(12/38) X (2)] + [(26/38) X (-1)] = 24/38 + (-26/38) = -2/38 = -1/19 = -.0526 = -5.26%