I've been trying to do these 2 questions about Permutation & Combination which linked to card play.
Q1 says :
Q1 : A sequence of 5 cards is drawn from a standard deck of cards, with replacement. a) How many sequences will have at least one queen ? b) How many sequences will have at least one king or one queen ( or both)?
for the first question i gave a try but i don't think is right :
a) the total cards = 52 and sequence of 5 cards and there 4 queen in the standard deck. There for 52^4 x 51 x 50 x 4 choices
b) total cards = 52 ^5 - 8x7x6x5x4x3x2x1 choices
Q2 : In the game of poker a player receives a subset of 5 cards, called a poker hand, from the standard deck of 52 cards. The order is which the cards are received is not important, just the actual cards themselves. a) How many poker hands contain 5 hearts ? b) How many poker hands contain exactly 3 hearts ? c) How many poker hands contain 2 clubs and 3 spades ? d) How many poker hands contain exactly two suits ?
I didn't understand the second Question i found it kinda of complex.