document.write( "Question 333514: A baseket contains 6blue,2 red,4 greenand 3 yellow balls\r
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document.write( "1. if 2 balls are picked at random, what is the probability that either both are
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document.write( "green or both are yellow?
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document.write( "2. If 5 balls are picked at random, what is the probability that at least one is blue.
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document.write( "3. If 2 balls are picked at random, what is the probability that both are blue?
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document.write( "4. If 4 balls are picked at random what is the probability that 2 are red and 2 are green
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document.write( "5.if 3 balls are picked at random what is the probability that none is yellow \n" );
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Algebra.Com's Answer #239006 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! A baseket contains 6 blue,2 red,4 green and 3 yellow balls \n" ); document.write( "1. if 2 balls are picked at random, what is the probability that either both are \n" ); document.write( "green or both are yellow? \n" ); document.write( "--- \n" ); document.write( "P(2green OR 2yellow) = P(2green) + P(2yellow) \n" ); document.write( "= [4C2/15C2]+[3C2/15C2] = [6+3]/105 = 9/105 \n" ); document.write( "----------------------------------------------- \n" ); document.write( "2. If 5 balls are picked at random, what is the probability that at least one is blue. \n" ); document.write( "P(at least one blue) = 1-P(none blue) \n" ); document.write( "= 1 - [9C5/15C5] \n" ); document.write( "= 1 - 0.0420 \n" ); document.write( "= 0.9580 \n" ); document.write( "--------------------------------------------------- \n" ); document.write( "3. If 2 balls are picked at random, what is the probability that both are blue? \n" ); document.write( "P(2blue) = [6C2/15C2] \n" ); document.write( "------------------------------- \n" ); document.write( "4. If 4 balls are picked at random what is the probability that 2 are red and 2 are green \n" ); document.write( "P(2red AND 2green) = P(2green|2red)*P(2red) = [3C2/13C2][2C2/15C2] \n" ); document.write( "-------------------------------------- \n" ); document.write( "5.if 3 balls are picked at random what is the probability that none is yellow \n" ); document.write( "P(no yellow) = 12C3/15C3 \n" ); document.write( "============================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "=============== \n" ); document.write( " \n" ); document.write( " |