Slots Ev Calculator Average ratng: 5,9/10 6845 reviews
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Disclaimer: This calculator produces an ESTIMATE only. The greater the bankroll size, the more accurate this estimate will be. In games like video poker, video keno, and slots, where the worst case scenario is losing one unit, I believe this calculator to overstate the chance of ruin. Expected Value Calculator The expected value of all Magic Online formats is calculated based on the current booster prices, card prices and your win percentage. Click on a format to view the calculations and the expected value per result. Updated every 5 minutes.

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Hello All,
I love slots and have recently started to take advantage of bonus offers from casinos. I've completed all offers with a positive EV. I have been using a very simplistic version of an EV calculation:
EV = Bonus - (Wagering * House Edge)
This has served me well, however now I want to start on offers that the above formula provides negative EV. After a lot of research I found the BonusChum software (see link below). It simulates how users perform on different slots and provides and average EV rate. What I believe is going on now is the following:
I don't like just using software without knowing the ins and outs of the calculations being performed. Looking at just the simplistic situation of a cashable bonus with the following info added:
Deposit £100
Bonus £100
Wager: x50 Bonus (£5,000)
Low Variance Slot
House Edge: 2.98%
Bet Size: £1
Universes: 100,000
RUN
Returned Values:
EV: £36.20
Bust Rate: 81.89%
Avg Wagering: £2133.22
My basic calculation would have determined an EV of (£100 - (£5000 * 2.98%) = -£49
I am really keen to understand how the above values are determined.
- How is the SD (standard deviation) calculated for slots (low, med, high, v.high) ?
- By selecting Low Var & house edge of 2.95%, BonusChum displays an SD of 4.8209 how is this calculated?
- How is the paytable (probability & payout) calculated? - is this coming from the SD graph, where expected outcomes are within 3 SD of the mean?
I've looked through so many forum posts without being able to find out how it works.
/forum/questions-and-answers/math/22690-slot-machine-standard-deviation/
bonuschum software like:
/software/bonuschum/