document.write( "Question 460844: The scores of adults on an IQ test are approximately Normal with mean 100 and standard deviation 15. Corinne scores 128 on such a test. She scores higher than what percent of all adults? \n" ); document.write( "
Algebra.Com's Answer #316137 by edjones(8007)![]() ![]() You can put this solution on YOUR website! z=(128-100)/15 \n" ); document.write( "=1.867 \n" ); document.write( "Area under normal curve beyond 1.867 is .031 \n" ); document.write( ". \n" ); document.write( "Ed \n" ); document.write( " |