If calculated risk = positive EV then the greater the number of instances the less "luck" is involved. If you are a 2 to 1 favorite, that is huge, but you still will lose 1 of 3 over the long haul. It is very conceivable that over the short term you could lose more than you should to variance. So while long term it is profitable, you are still mathematically supposed to get run down sometimes. So, if you are an occasional player who plays just for fun and doesn't care to study, I say gamble if it's what you do. You may win, but long term you will feed the poker community, which is greatly appreciated..
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