document.write( "Question 1175747: Assume the random variable x is normally distributed with mean = 86 and standard deviation = 4. Find the indicated probility p(x<80 \n" ); document.write( "

Algebra.Com's Answer #801546 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "one may use TI Calculator or similarly a $20 Casio fx-115 ES plus \r\n" );
document.write( "Normal distribution:   μ = 86 and    σ - 4\r\n" );
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document.write( "P(x < 80) = P( x ≤ 80 ) = normcdf(-9999, 80, 4, 86) = .06680720128\r\n" );
document.write( "Commonly rounded to 4 decimals points 0r .0668\r\n" );
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