document.write( "Question 944543: Find a value of the standard normal random variable z0, with the following probabilities: P(z
Algebra.Com's Answer #575923 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Find a value of the standard normal random variable z0, with the following probabilities: P(z \n" ); document.write( "Draw a picture of the normal curve so you can \n" ); document.write( "understand the answer when you get it. \n" ); document.write( "----- \n" ); document.write( "mean = 0 \n" ); document.write( "std = 1 \n" ); document.write( "---- \n" ); document.write( "Plot a z-value on the horizontal axis that has \n" ); document.write( "a left tail of 0.7497. \n" ); document.write( "Note that that z-value has area = 0.2497 to the right \n" ); document.write( "of the mean. \n" ); document.write( "---- \n" ); document.write( "Now find the area to the left of that z-value. \n" ); document.write( "==== \n" ); document.write( "I use a TI-84 to get the following:: \n" ); document.write( "invNOrm(0.7497) = 0.6736 \n" ); document.write( "---- \n" ); document.write( "That is the area under the curve to the left of z = 0.7497. \n" ); document.write( "---- \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. |