document.write( "Question 1178337: Test scores on a math exam are normally distributed with a mean of 82 and a standard deviation of 5.5. Using a z-score, find the probability that a randomly selected student attained these scores:
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Algebra.Com's Answer #807545 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi\r\n" );
document.write( "Normal Distribution:    μ = 82      σ = 5.5\r\n" );
document.write( "Continuous Curve\r\n" );
document.write( "Using TI or similarly an inexpensive calculator like a Casio fx-115 ES plus\r\n" );
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document.write( "P(x ≥ 84) = 1 - P(x ≤ 84) = 1 - normalcdf(-9999, 84, 82, 5.5) = 1- .6419 = .3581\r\n" );
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document.write( "P(x ≤ 73) =  normalcdf(-9999, 73, 82, 5.5) = .0509\r\n" );
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document.write( "Wish You the Best in your Studies.\r\n" );
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