document.write( "Question 1170265: uppose the systolic blood pressure of an adult male is normally distributed with a mean of 138 mm of mercury and a standard deviation of 10 mm of mercury.\r
\n" ); document.write( "\n" ); document.write( "a) (2 marks) If an adult male is selected at random, find the probability that his blood pressure will be greater than 160 mm.\r
\n" ); document.write( "\n" ); document.write( "b) (4 marks) If an adult male is selected at random, find the probability that his blood pressure will be between 120 mm and 135 mm.\r
\n" ); document.write( "\n" ); document.write( "c) (4 marks) If an adult male is selected at random, find the probability that his blood pressure will be within 25 mm of the population mean.\r
\n" ); document.write( "\n" ); document.write( "d) (4 marks) Find the 92nd percentile of the probability distribution.
\n" ); document.write( "

Algebra.Com's Answer #795176 by Boreal(15235)\"\" \"About 
You can put this solution on YOUR website!
z=(x-mean)/sd
\n" ); document.write( "z>22/10 or 2.2
\n" ); document.write( "0.0139 probability
\n" ); document.write( "-
\n" ); document.write( "z between -1.8 and -0.3 with probability of 0.3462
\n" ); document.write( "-
\n" ); document.write( "z between +/- 2.5 or 0.9876
\n" ); document.write( "-
\n" ); document.write( "z=1.405 so the BP would be 152.05 mm Hg
\n" ); document.write( "
\n" ); document.write( "
\n" );