document.write( "Question 473481: Birth weights are normally distributed with a mean weight of 3285 grams and a standard deviation of 500 grams.\r
\n" ); document.write( "\n" ); document.write( "What is the probability of a birth weight more than 3285 grams?\r
\n" ); document.write( "\n" ); document.write( "What is the probability that the birth weight is between 2785 grams and 3785 grams?\r
\n" ); document.write( "\n" ); document.write( "What is the probability that the birth weight is between 785 grams and 5785 grams?\r
\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?
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Algebra.Com's Answer #324721 by stanbon(75887)\"\" \"About 
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.
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\n" ); document.write( "What is the probability of a birth weight more than 3285 grams?:::0.5000
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\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
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\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
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\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?
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\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.
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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