Q♠ in a standard deck Pallas, Q♠ in the Paris pattern[1][2] Q♠ in a Russian deck Q♠ from 19th-century tarock deck The queen of spades (Q♠) is one of 52 playing cards in a standard deck: the queen of the suit of spades (♠). In Old Maid and several games of the Hearts family, it serves as a single, undesirable card in the deck. Roles by gameIn the Hearts family of card games, the queen of spades is usually considered an unlucky card; it is the eponym of the Black Maria and Black Lady variants of Hearts. The player who ends up with the queen of spades after a match scores 13 points (points are to be avoided in this game). The exception is when the player receives this card with all 13 hearts, in which the player is said to have shot the moon, and this player scores no points, while all opponents are scored 26 points. In the game of Old Maid, while any card can technically be used for this purpose, the queen of spades is traditionally used as a card that has no match, thereby making it the "old maid" card. In the seven card stud poker variant known as "The Bitch", a face-up deal of the queen of spades results in the deal being abandoned, all cards being shuffled and a new deal starting with only those players who had not already folded when the queen of spades was dealt.[3] In Pinochle, the queen of spades and the jack of diamonds combine for a unique two-card meld known as a "pinochle". Card readingIn cartomancy, the queen of spades is considered to be a sign of intelligence. It is representative of judgment that is practical, logical, and intellectual. It represents a woman who is creative and makes her plans ahead of time.[4] See also
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You deal 5 cards from a well-shuffled deck of playing cards. What is the probability that the 5th card is the queen of spades? Just from analysis, P(5th queen spade) = (51*50*49*48*1)/(52*51*50*49*48) = 1/52 However why wont this method of logic thinking incorrect? P(5th queen spade) = (51Cr4) / (52Cr5) = 5/52. Reasoning: choose any first 4 cards and last card is queen spade, divide by all possible choice
$\endgroup$ 6 Probability means Possibility. It states how likely an event is about to happen. The probability of an event can exist only between 0 and 1 where 0 indicates that event is not going to happen i.e. Impossibility and 1 indicates that it is going to happen for sure i.e. Certainty. The higher or lesser the probability of an event, the more likely it is that the event will occur or not respectively. For example – An unbiased coin is tossed once. So the total number of outcomes can be 2 only i.e. either “heads” or “tails”. The probability of both outcomes is equal i.e. 50% or 1/2. So, the probability of an event is Favorable outcomes/Total number of outcomes. It is denoted with the parenthesis i.e. P(Event).
What is Sample Space? All the possible outcomes of an event are called Sample spaces. Examples-
Types of Events Independent Events: If two events (A and B) are independent then their probability will be
Example: If two coins are flipped, then the chance of both being tails is 1/2 * 1/2 = 1/4 Mutually exclusive events:
Example: The chance of rolling a 2 or 3 on a six-faced die is P (2 or 3) = P (2) + P (3) = 1/6 + 1/6 = 1/3 Not Mutually exclusive events: If the events are not mutually exclusive then
What is Conditional Probability? For the probability of some event A, the occurrence of some other event B is given. It is written as P (A ∣ B)
Example- In a bag of 3 black balls and 2 yellow balls (5 balls in total), the probability of taking a black ball is 3/5, and to take a second ball, the probability of it being either a black ball or a yellow ball depends on the previously taken out ball. Since, if a black ball was taken, then the probability of picking a black ball again would be 1/4, since only 2 black and 2 yellow balls would have been remaining, if a yellow ball was taken previously, the probability of taking a black ball will be 3/4. Some points related to Cards:
Solution:
Similar QuestionsQuestion 1: What is the probability of getting a queen of black card? Solution:
Question 2: What is the probability of getting a queen of spades? Solution:
Question 3: What is the probability of getting a heart of red cards? Solution:
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