document.write( "Question 581900: The mean weekly income of teachers in one state is $390 with a standard deviation of $45. The incomes are approximately normally distributed. What is the probability that a randomly selected teacher earns more than $425 a week?\r
\n" );
document.write( "\n" );
document.write( "My answer = 0.215\r
\n" );
document.write( "\n" );
document.write( "Thank you! \n" );
document.write( "
Algebra.Com's Answer #371852 by jim_thompson5910(35256) ![]() You can put this solution on YOUR website! The answer is more like 0.2184, but you are very close. My guess is that there was a roundoff error somewhere or the table you're using isn't that accurate. \n" ); document.write( " |