In the Game of Blackjack, a 2-Card Hand Consisting of an Ace

Short Answer

In the game of blackjack, a 2-card hand consisting of an ace and a face card or a 10 is called a blackjack. Give the answers to four decimal places.
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If a player is dealt 2 cards from a standard deck of 52 well-shuffled cards, what is the probability that the player will receive a blackjack?
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If a player is dealt 2 cards from 7 well-shuffled standard decks, what is the probability that the player will receive a blackjack?
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