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)\"\" \"About 
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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.
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\n" ); document.write( "z(0) = (0-4.5)/4 = -1.125
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\n" ); document.write( "P(x> 0) = P(z > -1.125) = normalcdf(-1.125,100) = 0.8697
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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