document.write( "Question 473481: Birth weights are normally distributed with a mean weight of 3285 grams and a standard deviation of 500 grams.\r
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document.write( "What is the probability of a birth weight more than 3285 grams?\r
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document.write( "What is the probability that the birth weight is between 2785 grams and 3785 grams?\r
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document.write( "What is the probability that the birth weight is between 785 grams and 5785 grams?\r
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document.write( "Is the area to the right of X = 4285 greater than or less than 0.5? Without calculating, how would you know this? \n" );
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Algebra.Com's Answer #324721 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Birth weights are normally distributed with a mean weight of 3285 grams and a standard deviation of 500 grams. \n" ); document.write( "------------------------- \n" ); document.write( "What is the probability of a birth weight more than 3285 grams?:::0.5000 \n" ); document.write( "------------------------------------ \n" ); document.write( "What is the probability that the birth weight is between 2785 grams and 3785 grams? \n" ); document.write( "Ans using TI-84: normalcdf(2785,3785,3285,500) = 0.6827 \n" ); document.write( "------------------------------------------------------------- \n" ); document.write( "What is the probability that the birth weight is between 785 grams and 5785 grams? \n" ); document.write( "Ans: normalcdf(785,5785,3285,500) = 1.00 \n" ); document.write( "--------------------------------- \n" ); document.write( "Is the area to the right of X = 4285 greater than or less than 0.5? Without calculating, how would you know this? \n" ); document.write( "--- \n" ); document.write( "Less than 0.5000 because 4285 is to the right of the mean, and \n" ); document.write( "the mean has a right tail of 0.5000. \n" ); document.write( "============================================= \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "=============== \n" ); document.write( " \n" ); document.write( " |