document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=866841>Question 866841</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help...\r<BR>\n" );
document.write( "\n" );
document.write( "1. A population has a standard deviation of 2 and a z-score = -1.00. In this population, what is the mean?\r<BR>\n" );
document.write( "\n" );
document.write( "2. What is the probability of randomly selecting a z-score greater than z= -.30 from a normal distribution? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #522688 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=522688\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 1. A population has a standard deviation of 2 and a z-score = -1.00. In this population, what is the mean?<BR>\n" );
document.write( "-----<BR>\n" );
document.write( "If 2 has a z-score of -1, 2 is one standard deviation below<BR>\n" );
document.write( "the mean.<BR>\n" );
document.write( "The mean would have to be 2+2 = 4<BR>\n" );
document.write( "----------------------------------------------\r<BR>\n" );
document.write( "\n" );
document.write( "2. What is the probability of randomly selecting a z-score greater than z= -.30 from a normal distribution?<BR>\n" );
document.write( "---<BR>\n" );
document.write( "P(z > -0.3) = normalcdf(-0.3,100) = 0.6179<BR>\n" );
document.write( "--------------------------------<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );