Follow these roulette
odds to win at online casino. Picture a $1 bet on
an individual number. The likelihood of hitting that
scrupulous number is 1 in 38, or 37 to 1. Of course
the casinos only pay you 35 to 1, robbing you a bit
of what's fairly yours. With this shortfall, you know
that in 38 spins you will lose $2. Two dollars just
happens to be 5.26% of the $38 you put into those
spins.
The mathematical formula for expectation reads as
follows:
Expectancy = [probability of a winning outcome
X the amount you would win] + [probability of a
losing outcome X the amount you would lose]
Which kind of makes sense. What you would expect
to win on the bet, combined with what you would
expect to lose, should tell you what you're expected
outcome is.
For the single dollar bet in roulette mentioned
above:
E = [1/38 x 35] + [37/38 x (-1)]
= 0.921 + (-0.97368)
= -0.0526
= -5.26% |
