document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=612819>Question 612819</A>: <I><SPAN STYLE=\"word-break: break-all;\">  Classify the following as discrete or continuous random variables.<BR>\n" );
document.write( " <BR>\n" );
document.write( "(A) The time it takes to run a marathon<BR>\n" );
document.write( "(B) The number of fractions between 1 and 2<BR>\n" );
document.write( "(C) A pair of dice is rolled, and the sum to appear on the dice is recorded<BR>\n" );
document.write( "(D) The length of a broad jump<BR>\n" );
document.write( "   </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #385733 by </B><A HREF=/tutors/aboutme.mpl?userid=Theo><B>Theo(13342)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Theo><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=Theo><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=385733\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> discrete means there's a finite possible set of numbers in the interval.<BR>\n" );
document.write( "continous means there's an infinite possible set of numbers in the interval.<BR>\n" );
document.write( "the answer appear to be:<BR>\n" );
document.write( "a.  continuous<BR>\n" );
document.write( "b.  continuous<BR>\n" );
document.write( "c.  discrete<BR>\n" );
document.write( "d.  continuous\r<BR>\n" );
document.write( "\n" );
document.write( "for (a), there are an infinite number of possible times limited only by the ability of the stopwatch to record them.  <BR>\n" );
document.write( "for (b), the number of fractions possible is infinite because you can always get a fraction between any 2 fractions.<BR>\n" );
document.write( "example:<BR>\n" );
document.write( "a fraction between 1/4 and 1/3 would be 3/8 because 1/4 = 2/8 and 1/2 = 4/8.<BR>\n" );
document.write( "a fraction between 1/8 and 1/4 would be 3/16 because 1/8 = 2/16 and 1/4 = 4/16.<BR>\n" );
document.write( "a fraction between 1/16 and 2/16 would be 3/32 because 1/16 = 2/31 and 2/16 = 4/32.<BR>\n" );
document.write( "no matter how fine  you make the fraction, you can always generate another fraction that is finer than that.<BR>\n" );
document.write( "for (c), there are a finite number of possibilities and no more than that.<BR>\n" );
document.write( "you can get any combination of 1 through 6 added to any combination of 1 through 6 but no more.<BR>\n" );
document.write( "for (d), the length of the broad jump has an infinite number of possible measurements limited only by the ability of the measuring equipment.<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );