document.write( "Question 523793: 4. Research on new juvenile delinquents revealed that 38% of them committed another crime.
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document.write( "a. What is the probability that of the last 100 new juvenile delinquents put on probation, 30 or more will commit another crime?
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document.write( "b. What is the probability that 40 or fewer of the delinquents will commit another crime?
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document.write( "c. What is the probability that between 30 and 40 of the delinquents will commit another crime?
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Algebra.Com's Answer #347457 by edjones(8007) You can put this solution on YOUR website! c) \n" ); document.write( "s=sqrt(npq)=sqrt(100*.38*.62)=4.854 \n" ); document.write( "m=np=100*.38=38 \n" ); document.write( "z=(x-m)/s=(29.5-38)/4.854=-1.751 \n" ); document.write( "z=(40.5-38)/4.854=0.515 \n" ); document.write( "The area under the normal curve between -1.751 and 0.515 is 0.657 the probability that between 30 and 40 of the delinquents will commit another crime. \n" ); document.write( ". \n" ); document.write( "Ed \n" ); document.write( " \n" ); document.write( " |