document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1195480>Question 1195480</A>: <I><SPAN STYLE=\"word-break: break-all;\"> About _______% of the area under the curve of the standard normal distribution is outside the interval z=[−1.25,1.25] (or beyond 1.25 standard deviations of the mean). Round the percentage to a whole number. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #827980 by </B><A HREF=/tutors/aboutme.mpl?userid=ikleyn><B>ikleyn(52910)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ikleyn><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=ikleyn><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=827980\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .<BR>\n" );
document.write( "About _______% of the area under the curve of the standard normal distribution <BR>\n" );
document.write( "is outside the interval z=[−1.25,1.25] (or beyond 1.25 standard deviations of the mean). <BR>\n" );
document.write( "Round the percentage to a whole number.<BR>\n" );
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document.write( "The normal distribution curve is a bell shaped curve.\r<BR>\n" );
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document.write( "The question is to determine the area under the normal distribution curve outside the interval [-1.25,1.25].\r<BR>\n" );
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document.write( "Go to website \r<BR>\n" );
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document.write( "https://onlinestatbook.com/2/calculators/normal_dist.html\r<BR>\n" );
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document.write( "and use free of charge online calculator specially intended for this purpose.\r<BR>\n" );
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document.write( "Input &nbsp;0 &nbsp;in the port window &nbsp;\" Mean \";\r<BR>\n" );
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document.write( "input &nbsp;1 &nbsp;in the port window &nbsp;&nbsp;&nbsp;&nbsp;\" SD \";    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;( <<<---===  SD means \"standard deviation\" )\r<BR>\n" );
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document.write( "input numbers &nbsp;-1.25 &nbsp;and 1.25 in the port windows &nbsp;\" OUTSIDE \".\r<BR>\n" );
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document.write( "Then click the button &nbsp;\" Recalculate \".\r<BR>\n" );
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document.write( "You will get the &nbsp;<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28highlight%28ANSWER%29%29 ALIGN=MIDDLE  ALT=\"highlight%28highlight%28ANSWER%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > &nbsp;0.2113 &nbsp;in the window &nbsp;\" Area &nbsp;(probability) \".\r<BR>\n" );
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document.write( "The shaded area in the plot shows you the area of the interest.\r<BR>\n" );
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document.write( "Rounding to the whole percent gives the answer 21%.\r<BR>\n" );
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document.write( "Every time as you get similar problem, &nbsp;you can solve it this way.\r<BR>\n" );
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document.write( "This way is the easiest and shortest way to learn the subject.\r<BR>\n" );
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document.write( "When you learn the subject enough, &nbsp;you will be ready and may start learning other ways.\r<BR>\n" );
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document.write( ". . . . . . . . . . . . \r<BR>\n" );
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document.write( "On HOW TO do it using pocket calculator, see this video lesson\r<BR>\n" );
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document.write( "https://www.youtube.com/watch?v=IyEKEL9nm28\r<BR>\n" );
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document.write( "and/or many other video lessons, which you can find in the Internet.\r<BR>\n" );
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document.write( " </SPAN>\n" );
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