Learn Poker Video Source & Info:

Probability with Blitz, Indian Poker: https://www.youtube.com/watch?v=j7gZrLuC_Rw&list=PLJ-ma5dJyAqrcWkF51fq4E_3nud2m0SF1&index=3
Poker Hand: 5 Card Game
52 cards in a deck
13 kinds (A, 2, 3, 4, 5, 6, 7, 8, 9, 10, J, Q, K)
4 Suits (Spades, Hearts, Diamonds, Clubs)
26 Red Cards (Hearts and Diamonds)
26 Black Cards (Spades and Clubs)
n(s) = Number of outcomes to draw 5 cards from 52= 52C5 =52!/(52-5)!5!=2598960
These are also the number of hands for one player with 5 cards
Examples: Probability for following hands in the game of Poker
1 Single Pair 2. Two Pairs
3. A Triple 4. Full House (Triple and Pair)
5. Four of a Kind 6. Flush (5 cards from same suit)
7. Royal Flush (10, J, Q, K, A Flush) 8. Straight Flush
9. Straight Normal 10. None of the above

Source: YouTube