The Riverside in Laughlin has several games with a "doubling feature"
for quad hands. The game selects a "quad type" at random. If your
next quad is the selected quad type, the normal jackpot is doubled.
One of these games is called Double Double Your Money Bonus. The
return is 97.85%, ignoring the doubling feature. So the question
is: How much higher is the return taking the doubling feature into
consideration?
This is the payschedule:
High Pair: 5
Two Pair: 5
Three of Kind: 15
Straight: 20
Flush: 25
Full House: 45
Quad 2 thru 10: 250
Quad J,Q,orK: 400
Quad Aces: 800
Quad J,Q,orK w/A,J,Q,orK: 800
Quad Aces w/J,Q,orK: 1600
Straight Flush: 250
Royal Flush: 4000
My guess is the Quad 2 thru 10 jackpot should be increased by 1/13th
of 250, to 269, because there is 1 chance in 13 the next quad will be
from 2 thru 10. In other words, the average quad from 2 thru 10 will
earn 269, not 250.
For the other four it's not that easy. My guess, for Quad J,Q,orK,
is to multiply 1/13 x 10/13 x 1 x 400, to 424. I multiplied by 10/13
because 10 out of every 13 J,Q,orK quads will not have the A,J,Q,orK
kicker. Is this correct?