document.write( "Question 817963: X is a normally distributed random variable with a mean of 22 and a standard deviation of 5. The probability that X is less than 9.7 is ? \n" ); document.write( "
Algebra.Com's Answer #492304 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! X is a normally distributed random variable with a mean of 22 and a standard deviation of 5. The probability that X is less than 9.7 is ? \n" ); document.write( "---------- \n" ); document.write( "z(9.7) = (9.7-22)/5 = -2.46 \n" ); document.write( "------- \n" ); document.write( "P(x < 9.7) = P(z < -2.46) = 0.0069 \n" ); document.write( "===================================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |