document.write( "Question 424083: Suppose X is a normally distributed random variable with the mean=10.1 and standard deviation=3.6. Find each of the following probabilities:
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document.write( "P(10.1<=x<=15.6)
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document.write( "and
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document.write( "P(x>=8)
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Algebra.Com's Answer #295733 by stanbon(75887) ![]() You can put this solution on YOUR website! Suppose X is a normally distributed random variable with the mean=10.1 and standard deviation=3.6. \n" ); document.write( "Find each of the following probabilities: \n" ); document.write( "P(10.1<=x<=15.6) \n" ); document.write( "--- \n" ); document.write( "z(10.1) = (10.1-10.1)/3.6 = 0 \n" ); document.write( "z(15.6) = (15.6-10.1)/3.6 = 5.5/3.6 = 1.5278 \n" ); document.write( "--- \n" ); document.write( "P(10.1 <= x <= 15.6) = P(0<= z <=1.5278) = 0.4367 \n" ); document.write( "=============================== \n" ); document.write( "and \n" ); document.write( "P(x>=8) \n" ); document.write( "z(8) = (8-10.1)/3.6 = -0.58333 \n" ); document.write( "P(x >= 8) = P(z >= -0.58333) = 0.7202 \n" ); document.write( "================ \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "================\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |