document.write( "Question 1112389: Use the formula
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document.write( "C(n, x)pxqn − x
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document.write( "to determine the probability of the given event. (Round your answer to four decimal places.)
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document.write( "The probability of at least three successes in six trials of a binomial experiment in which
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document.write( "p = 1/2
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Algebra.Com's Answer #727411 by Boreal(15235) You can put this solution on YOUR website! Do 0, 1, 2 successes and subtract the combined sum from 1 \n" ); document.write( "For 0, it is .5^6=0.0156 \n" ); document.write( "For 1 it is 6C1(1/2)^6, which is 6 times the first or 0.0938 \n" ); document.write( "For 2 it is 6C2(1/2)^6, which is 15 times the first or 0.2344 \n" ); document.write( "The sum of those 3 is 0.3438\r \n" ); document.write( "\n" ); document.write( "The probability is for at least 3 successes, so that is 1-0.3438 or 0.6562 \n" ); document.write( " |