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Probabilities, and California Lottery Decco Playing Cards

The market suddenly got flooded with these California Lottery Decco playing cards. So I’m keeping mine out for a while. If you want one, I will mail it to you for $8.

As of Jan 21, there are 13 sellers.

These are US Playing Card cards, so feel like Bicycle cards.

They have 1980s style graphics on the back, with the iconic California Lottery logo.

The Decco game was pretty simple. You pick 4 cards, and if you match the day’s Decco game,  you get $5,000.  If you match 1,  you get a free play.

So this is a “4/52” game, where you pick 4 from 52 cards.

Owlcation has a good article about calculating lotto probabilities.

The formula is 52! / ( 4! ( 52 – 4 )! ) = 270725.

So the odds of winning are 1 in 270,725.

The odds of matching 1 are 4 in 52, or 1 in 13.

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