0.0084% . For the 1st card the chance for heart is 13/52 For the 2nd card the chance for that card to also be heart is 13/52 * 12/51 (12 heart remaining in a deck with 51 cards remaining). For the 3rd card the chance for that card to be heart as well is 13/52 * 12/51 * 11/50 etc. So for the 6th card the chance that all 6 cards are heart is 13/52 * 12/51 * 11/50 * 10/49 * 9/48 * 8/47 = 0.000084 or 0.0084%
Two cards were drawn, without replacement, from a pack of 52 cards. what is the probability that they are both kings or both queens?