document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=886548>Question 886548</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 1(a) David scored 82, 74 and 90 in three tests. What mark should he score in the fourth test so <BR>\n" );
document.write( "that his average marks for the four test would be 85%?<BR>\n" );
document.write( "(b) What was his median score in the test? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #535998 by </B><A HREF=/tutors/aboutme.mpl?userid=JulietG><B>JulietG(1812)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=JulietG><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=JulietG><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=535998\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> David wants 85% in four tests, or 340/40<BR>\n" );
document.write( "So far, he has 82+74+90, or 246 points.<BR>\n" );
document.write( "340 - 246 = 94<BR>\n" );
document.write( ".<BR>\n" );
document.write( "If he scores 94, his scores will be 74, 82, 90, 94<BR>\n" );
document.write( "The median is the middle number.  In this case we have TWO middle numbers: 82 and 90.  Add them together and divide by 2 to find the median.<BR>\n" );
document.write( "82 + 90 = 172<BR>\n" );
document.write( "172 /2 = 86<BR>\n" );
document.write( "The mean is 85 (that was a given from earlier)<BR>\n" );
document.write( "As for mode, each number occurs only once.  We *could* say that they are all the mode or none the mode.  Grouping is a better solution, though.  There is one value in the 70s, one in the 80s, and two in the 90s, so \"90s\" would be the mode. </SPAN>\n" );
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