document.write( "Question 1044403: Assume that adults have IQ scores that are normally distributed with a mean of
\n" ); document.write( "105
\n" ); document.write( "and a standard deviation
\n" ); document.write( "20.
\n" ); document.write( "Find P10,
\n" ); document.write( "which is the IQ score separating the bottom
\n" ); document.write( "10%
\n" ); document.write( "from the top
\n" ); document.write( "90%. \n" ); document.write( "

Algebra.Com's Answer #659787 by Boreal(15235) $\"\"$ $\"About$

You can put this solution on YOUR website!
z(0.10)=-1.28
\n" ); document.write( "-1.28=(x-105)/20
\n" ); document.write( "-25.6=x-105
\n" ); document.write( "x=79.4 or 79 \n" ); document.write( "

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