It's getting late here and I'm to lazy to calculate the odds. So I asked Uncle Google...
The chances of picking all 12 cards as jokers from a deck of 300 cards with 20 jokers is very low.Here's a breakdown:
Understanding the Probability
Each time you pick a card, the number of remaining jokers and total cards decreases.This means the probability of picking a joker on each draw changes.
Calculating the Probability
First pick:The probability of picking a joker on the first draw is 20/300.
Second pick:If the first card was a joker, there are now 19 jokers left out of 299 cards.The probability becomes 19/299.
And so on:We continue this pattern for all 12 picks.
The Calculation
The overall probability is the product of these individual probabilities: