document.write( "Question 1167973: The results of a recent survey indicate that the average new car costs $23,000 with a standard deviation of $3,500. The price of cars is normally distributed.\r
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document.write( "1.If someone bought a car for $16,000, what percentage of cars cost an equal amount or more than this?\r
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document.write( "2.What percentage of cars were sold for an amount between $12,000 and $30,000?\r
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document.write( "Need help solving these questions \n" );
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Algebra.Com's Answer #792693 by Theo(13342)![]() ![]() You can put this solution on YOUR website! average car costs 23,000 with a standard deviation of 3500. \n" ); document.write( "price of cars is normally distributed.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "calculator used was omni calculator found at https://www.omnicalculator.com/statistics/normal-distribution\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "1. percentage of cars costing 16000 or more is 97.725%.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " ![]() \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "inputs to calculator were mean = 23000, standard deviation = 3500, X = 16000.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "output from the calculator was p(x>X) = .97725\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "2. percentage of cars costing between 12000 and 30000 = 97.64%\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " ![]() \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "inpus to the calculator were mean = 23000, standard deviation = 3500, X = 12000, X2 = 30000.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "output from the calculator was p(X < x < X2) = .976413.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "the calculator shows the rate or ratio or the proportion, however you want to call it.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "the percentage is 100 times that.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "the z-score of X and X2 are also shown.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |