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Blackjack, or 21, is a popular gambling game played in casinos. A player is deal

ID: 3171770 • Letter: B

Question

Blackjack, or 21, is a popular gambling game played in casinos. A player is dealt two cards. Face cards (Jacks, Queens, and Kings) and tens have a point value of 10. Aces have a point value of 1 or 11. A 52 card deck has 16 cards with a point value of 10 and four aces. Use the hypergeometric probability distribution to answer the following questions: What is the probability that both cards dealt are either aces or a 10 point card? What is the probability that both of the cards are aces? What is the probability that both of the cards have a point value of 10?

Explanation / Answer

Result:

P(X=x) = (N1Cx) (N-N1Cn-x) (NCn)-1  

a).

N=52

N1=20

n=2

x=2

P( x=2) =0.1433

b).

a).

N=52

N1=4

n=2

x=2

P( x=2) = 0.0045

c).

a).

N=52

N1=16

n=2

x=2

P( x=2) = 0.0905