document.write( "Question 462187: 1.Mr. A has a career batting average of .325. What was the probability that would get at least one hit in five official times at bat?\r
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document.write( "2.A factory finds that on the average 20% of the bolts produced by a given machine will be defective for certain specified requirements. If 10 bolts are selected at random from the days production of this machine, find the probability that 2 or more will be defective. \n" );
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Algebra.Com's Answer #316907 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! 1.Mr. A has a career batting average of .325. What was the probability that would get at least one hit in five official times at bat? \n" ); document.write( "----- \n" ); document.write( "P(x>=1) = 1 - P(x=0) = 1 - (0.675)^5 = 1-0.1401 = 0.8599 \n" ); document.write( "================================================================== \n" ); document.write( "2.A factory finds that on the average 20% of the bolts produced by a given machine will be defective for certain specified requirements. If 10 bolts are selected at random from the days production of this machine, find the probability that 2 or more will be defective. \n" ); document.write( "P(2<-x<=10) = 1 - P(0<= x <=1) = binomcdf(10,0.2,1) = 0.6242 \n" ); document.write( "==================================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "==================== \n" ); document.write( " \n" ); document.write( " |