Respuesta :
The question refers to a standard pack of cards comprising 52 cards, (with the Jokers removed).There are an equal number of Red and Black cards.
There are 4 suits (Hearts, Diamonds, Spades and Clubs) in the pack with 13 cards in each suit.The pack is thoroughly shuffled before ANY card is withdrawn.If a card is withdrawn, it is drawn randomly, that is sight-unseen. NOTE: The card drawn is NOT chosen (that is chosen because it is (say) a Spade ), rather because it is sight-unseen, it is therefore selected randomly.There are 52 cards in the pack with each suit comprising 13 cards exactly.In each suit, there is an Ace, 2 3, 4, 5, 6, 7, 8, 9,and 10, Jack, Queen, and King, a total of 13 cards pet suit.8
ANALYSIS
There are 13 SPADE cardsThere are 04 QUEEN cards
There are 52 cards in a pack
There is 01 card which is BOTH A SPADE and a QUEEN.P(SPADE CARD) = ( 13/52 ) = ( 1/4 )
P(QUEEN CARD) = ( 4/52 ) = ( 1/13 )
P( SPADE or QUEEN CARD ) = P(SPADE CARD) + P(QUEEN CARD) - P(CARD THAT IS BOTH SPADE AND QUEEN) or
= ( 13/52 ) + (4/52) - (1I/52)
P( SPADE or QUEEN CARDS )
=( 13/52 ) + ( 4/52 ) - ( 1/52 )= ( 16/52 ) = 0.3077(rounded) = 30.77%
Therefore, the Probability of drawing a SPADE or a QUEEN is 30.77%
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