document.write( "Question 309317: Suppose that the annual rate of return for a common biotechnology stock is normally distributed with a mean of 4.5% and a standard deviation of 4% . Find the probability that the one-year return of this stock will be positive. Round your answer to at least four decimal places. \n" ); document.write( "
Algebra.Com's Answer #221205 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Suppose that the annual rate of return for a common biotechnology stock is normally distributed with a mean of 4.5% and a standard deviation of 4% . Find the probability that the one-year return of this stock will be positive. Round your answer to at least four decimal places. \n" ); document.write( "----------------- \n" ); document.write( "z(0) = (0-4.5)/4 = -1.125 \n" ); document.write( "------------------------------ \n" ); document.write( "P(x> 0) = P(z > -1.125) = normalcdf(-1.125,100) = 0.8697 \n" ); document.write( "=========================================================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "=========== \n" ); document.write( " |