zazou
zazou
Joined: Sep 2, 2011
  • Threads: 5
  • Posts: 8
March 9th, 2020 at 9:19:57 AM permalink
A casino is promoting some of their slot games by offering a one time doubling of the winnings up to $20.

So if you spin $10 and win $50 you get $20 extra cash voucher.
$10 spin and you win $10 you get $10 extra, etc

A very rough estimation of the EV gives me:

50% chance of winning something (min. win at $10 spin is $20)
House edge 5%

So average wagering $20 x5% HE= $19 expected value

Is this the correct way of calculating this?

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