document.write( "Question 1132082: The time required to finish a test in normally distributed with a mean of 80 minutes and a standard deviation of 15 minutes. What is the probability that a student chosen at random will finish the test in more than 95 minutes \n" ); document.write( "
Algebra.Com's Answer #748951 by Boreal(15235)![]() ![]() You can put this solution on YOUR website! z=(x-mean)/sd \n" ); document.write( ">=(95-80)/15 \n" ); document.write( "=+1 \n" ); document.write( "z > +1 is 0.1587 \n" ); document.write( "(+1 is 0.1587 on the standard normal distribution which means that the area beyond that is 0.1587 of the area.) \n" ); document.write( " |