document.write( "Question 150490: Can anyone help me find the area under the normal distribution curve to the right of z= -3.24\r
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document.write( "Ellen \n" );
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Algebra.Com's Answer #110570 by Edwin McCravy(20060)![]() ![]() You can put this solution on YOUR website! Can anyone help me find the area under the normal distribution curve to the right of z= -3.24 \n" ); document.write( "Ellen \n" ); document.write( " \r\n" ); document.write( "Three methods:\r\n" ); document.write( "\r\n" ); document.write( "Go to this site:\r\n" ); document.write( "\r\n" ); document.write( "http://davidmlane.com/hyperstat/z_table.html\r\n" ); document.write( "\r\n" ); document.write( "Leave the mean set at 0 and the Sd at 1\r\n" ); document.write( "\r\n" ); document.write( "Check \"Above\" if it isn't already checked.\r\n" ); document.write( "\r\n" ); document.write( "Beside \"Above\" type in -3.24 \r\n" ); document.write( "\r\n" ); document.write( "At the bottom in blue you see:\r\n" ); document.write( "\r\n" ); document.write( "Shaded area: 0.999402 \r\n" ); document.write( "\r\n" ); document.write( "Method 2:\r\n" ); document.write( "\r\n" ); document.write( "Go to the z table in your book. Find 3.2 on the left\r\n" ); document.write( "z-column. Find .04 across the top, and read 0.4994,\r\n" ); document.write( "then add .5 for the left half of the curve, getting\r\n" ); document.write( "0.9994.\r\n" ); document.write( "\r\n" ); document.write( "(Some tables give you the 0.9994 directly)\r\n" ); document.write( "\r\n" ); document.write( "Method 3:\r\n" ); document.write( "\r\n" ); document.write( "TI-83 or TI-84\r\n" ); document.write( "\r\n" ); document.write( "From the main screen,\r\n" ); document.write( "\r\n" ); document.write( "Press 2ND VARS 2\r\n" ); document.write( "\r\n" ); document.write( "You see this:\r\n" ); document.write( "\r\n" ); document.write( "normalcdf(\r\n" ); document.write( "\r\n" ); document.write( "After that type \r\n" ); document.write( "\r\n" ); document.write( " -3.24,999999999) \r\n" ); document.write( "\r\n" ); document.write( "so that you see this on your screen: \r\n" ); document.write( "\r\n" ); document.write( "normalcdf(-3.24,999999999)\r\n" ); document.write( "\r\n" ); document.write( "Then press ENTER and read\r\n" ); document.write( "\r\n" ); document.write( ".9994022895\r\n" ); document.write( "\r\n" ); document.write( "When the area is \"to the right of\", type nine nines,\r\n" ); document.write( "that is 999999999, for the right bound of the area.\r\n" ); document.write( "\r\n" ); document.write( "When the area is \"to the left of\", type a negative\r\n" ); document.write( "sign and nine nines, -999999999, for the left bound\r\n" ); document.write( "of the area.\r\n" ); document.write( "\r\n" ); document.write( "Edwin\n" ); document.write( " |