Final answer:
There are 2,598,960 possible 5-card hands in poker when dealt from a well-shuffled 52-card deck, and 1,287 of these hands can be made up entirely of clubs.
Step-by-step explanation:
Calculating Different Poker Hands
To calculate the number of different possible hands in poker when dealt 5 cards from a well-shuffled 52-card deck, we use combinations as the order of the cards does not matter.
The formula for combinations is C(n, k) = n! / (k! (n-k)!), where n is the total number of items to choose from, k is the number of items to choose, and ! denotes factorial.
For the total number of different 5-card hands (part A), n is 52 and k is 5:
C(52, 5) = 52! / (5!(52-5)!) = 2,598,960 possible hands.
For the number of hands containing only clubs (part B), since there are 13 clubs, and we want all 5 cards to be clubs:
C(13, 5) = 13! / (5!(13-5)!) = 1,287 possible hands.