document.write( "Question 861056: Let x be a random variable that represents the level of glucose in the blood (milligrams per deciliter of blood) after a 12 hour fast. Assume that for people under 50 years old, x has a distribution that is approximately normal, with mean μ = 66 and estimated standard deviation σ = 41. A test result x < 40 is an indication of severe excess insulin, and medication is usually prescribed.
\n" ); document.write( " (a) What is the probability that, on a single test, x < 40? (Round your answer to four decimal places.)
\n" ); document.write( " \n" ); document.write( "

Algebra.Com's Answer #518810 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!

 
\n" );
document.write( "Hi,
\n" );
document.write( "z =  = -.6341
\n" );
document.write( "P(z < -.6341) = 26.30%    | TI syntax is InvNorm(-.6341) \n" );
document.write( "

\n" );