document.write( "Question 1120767: A jar contains 13 marbles: 5 green and 8 black. If three marbles are picked at random one by one, what is the probability that
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document.write( "a First is green?
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document.write( "b all three is green?
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document.write( "c they are the same color? \n" );
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Algebra.Com's Answer #736450 by rothauserc(4718)![]() ![]() You can put this solution on YOUR website! (a) Probability (P) (first selected marble is green) = 5/13 \n" ); document.write( ": \n" ); document.write( "(b) P (all three selected marbles are green) = (5/13) * (4/12) * (3/11) = 0.035 \n" ); document.write( ": \n" ); document.write( "(c) P (all three selected marbles are black) = (8/13) * (7/12) * (6/11) = 0.1958 \n" ); document.write( ": \n" ); document.write( "P ( all three selected marbles are of one color) = 0.035 + 0.1958 = 0.2308 \n" ); document.write( ": \n" ); document.write( " \n" ); document.write( " |