document.write( "Question 1210425: Sara draws the 3 of hearts from a standard deck of 52 cards. Without replacing the first card, she then proceeds to draw a second card.
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document.write( "a. Determine the probability that the second card is another 3.
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document.write( "P(3 3 of hearts) =
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document.write( "b. Determine the probability that the second card is another heart.
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document.write( "P (heart 3 of hearts) =
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document.write( "c. Determine the probability that the second card is a club.
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document.write( "P (club 3 of hearts) =
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document.write( "d. Determine the probability that the second card is a 7.
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document.write( "P(7 / 3 of hearts) =
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document.write( "Write your answers as reduced fractions. \n" );
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Algebra.Com's Answer #852499 by math_tutor2020(3822) ![]() You can put this solution on YOUR website! \n" ); document.write( "Answers: \n" ); document.write( "(a) 1/17 \n" ); document.write( "(b) 4/17 \n" ); document.write( "(c) 13/51 \n" ); document.write( "(d) 4/51\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Explanations\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Part (a)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "There are 4 copies of cards with the label \"3\" (one for each suit). \n" ); document.write( "Since Sara is not replacing the 3 of hearts she selects, there are 4-1 = 3 copies remaining. This is out of 52-1 = 51 cards.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "3/51 = (1*3)/(17*3) = 1/17 is the probability of another 3 being selected if the first card is not replaced.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "------------------------------------ \n" ); document.write( "Part (b)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "There are 52 cards in a deck. \n" ); document.write( "52/4 = 13 of which are hearts \n" ); document.write( "(ace, 2 through 10, jack, queen, king) \n" ); document.write( "This excludes jokers.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "If 3 of hearts is the first card, and not put back or replaced, then there would be 13-1 = 12 hearts remaining out of 52-1 = 51 cards \n" ); document.write( "12/51 = (4*3)/(17*3) = 4/17 is the answer to part (b)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "------------------------------------ \n" ); document.write( "Part (c)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "There are 13 clubs out of 52-1 = 51 cards remaining. \n" ); document.write( "This leads directly to 13/51 which cannot be reduced further. \n" ); document.write( "Note I did not subtract 1 from the clubs since the sets \"hearts\" and \"clubs\" are mutually exclusive. There's no overlap.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "------------------------------------ \n" ); document.write( "Part (d)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "There are 4 copies of 7 out of 52-1 = 51 cards remaining. \n" ); document.write( "Therefore the answer is 4/51 \n" ); document.write( " \n" ); document.write( " |