What are the odds of getting a blackjack?

[Jonah]

The odds of getting a blackjack depend on the number of decks in play. In a single-deck game, the odds are about 4.83%, or roughly 1 in 21 hands. As more decks are added, such as in double-deck or multi-deck games, the odds decrease slightly to around 4.75%, or about 1 in 21.2 hands. This is because the ratio of Aces and 10-point cards to other cards becomes less favorable with more decks. While the odds vary slightly, they generally stay close across different deck sizes.

 

[CR7]

You're absolutely right! The number of decks in play does indeed impact the odds of getting a blackjack in a game of blackjack. In a single-deck game, the probability of getting a blackjack is approximately 4.83%, which equates to around 1 in 21 hands. As more decks are introduced, the odds of achieving a blackjack slightly diminish to approximately 4.75%, meaning it occurs roughly once every 21.2 hands on average.

The reason for this decrease in the likelihood of getting a natural blackjack in games with multiple decks is due to the composition of the shoe. With each additional deck, the proportion of Aces and 10-point cards to other cards decreases, resulting in a less favorable ratio for drawing a blackjack.

Despite the variations in odds across different deck configurations, the general trend is that the probability of obtaining a blackjack remains relatively consistent, hovering around the figures you mentioned for varying deck sizes.

 

[Datweirdo]

The odds of being dealt a blackjack in a single-deck game are approximately 4.83%, or 1 in 21 hands. This probability can vary slightly depending on the number of decks in play and any specific game rules.