poker straight probability

poker straight probability
A five-card poker hand is dealt at random from a standard 52-card deck.?

Note the total number of possible hands is C(52,5)=2,598,960.
Find the probabilities of the following scenarios:
(a) What is the probability that the hand contains exactly one ace?
Answer= a/ C(52,5), where a=

(b) What is the probability that the hand is a flush? (That is all the cards are of the same suit: hearts, clubs, spades or diamonds.)
Answer= b/ C(52,5), where b=

(c) What is the probability that the hand is a straight flush?
Answer= c/ C(52,5), where c=

a)
4C1*48C4 = 778,320 = a

b)
flush:
13C5*4 = 5,148
this includes straight flushes and royal flushes

straight flush:
from A-5 to 9-K -> 9
total four suits = 9*4 = 36

royal flush:
from 10-A -> 1
total four suits = 1*4 = 4

flush -> 5,148 – 36 – 4 = 5,108 = b

c)
from b),
straight flush -> 36 = c

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Practical Poker Math: Basic Odds & Probabilities for Hold'Em and Omaha


Practical Poker Math: Basic Odds & Probabilities for Hold’Em and Omaha


$17.70


A study in probability, strategy, and game theory, this handy companion explores all the mathematical methods of mastering the game of poker. Using an original concept called “Total Odds,” the book presents a complete odds work-up for both Texas Hold’Em and the high and low hands of Omaha. These principles are accessible to any poker player at any skill level, and the calculations are color-coded…

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