document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=330398>Question 330398</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I am completely lost trying to figure out these tables!  I would love some help trying to figure it out!! Thanks!\r<BR>\n" );
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document.write( "The frequency distribution shown lists the number of hours per day a randomly selected sample of teenagers spent watching television.<BR>\n" );
document.write( "Hours per day # of teens = f Midpoint = x Fx Fx²<BR>\n" );
document.write( "0 &#8804; x < 1 18 <BR>\n" );
document.write( "1 &#8804; x < 2 31 <BR>\n" );
document.write( "2 &#8804; x < 3 24 <BR>\n" );
document.write( "3 &#8804; x < 4 38 <BR>\n" );
document.write( "4 &#8804; x < 5 27 <BR>\n" );
document.write( "5 &#8804; x < 6 12 <BR>\n" );
document.write( "6 &#8804; x < 7 15 \r<BR>\n" );
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document.write( "a. Complete the table.<BR>\n" );
document.write( "b. Construct a histogram representing the data.<BR>\n" );
document.write( "c. Calculate the mean, median, and mode number of hours the teens watch television.<BR>\n" );
document.write( "d. Calculate the standard deviation.<BR>\n" );
document.write( "e. What percent of the data lies within one standard deviation of the mean?\r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #236817 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=236817\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> I am completely lost trying to figure out these tables! I would love some help trying to figure it out!! Thanks! \r<BR>\n" );
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document.write( "The frequency distribution shown lists the number of hours per day a randomly selected sample of teenagers spent watching television.<BR>\n" );
document.write( "Hours per day # of teens = f Midpoint = x Fx Fx²<BR>\n" );
document.write( "0 &#8804; x < 1 18 <BR>\n" );
document.write( "1 &#8804; x < 2 31 <BR>\n" );
document.write( "2 &#8804; x < 3 24 <BR>\n" );
document.write( "3 &#8804; x < 4 38 <BR>\n" );
document.write( "4 &#8804; x < 5 27 <BR>\n" );
document.write( "5 &#8804; x < 6 12 <BR>\n" );
document.write( "6 &#8804; x < 7 15<BR>\n" );
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document.write( "Comment:<BR>\n" );
document.write( "When you have a frequency distribution of the kind you have lost<BR>\n" );
document.write( "the data because it has been sorted into bins. <BR>\n" );
document.write( "You must use the \"mark\" of each bin as the representative<BR>\n" );
document.write( "value for the bin.<BR>\n" );
document.write( "So<BR>\n" );
document.write( "for 0<= x <1 use (1+0)/2 = 0.5 with frequency 18<BR>\n" );
document.write( "for 1<= x <2 use (2+1)/2 = 1.5 with frequency 31<BR>\n" );
document.write( "Do that for each of the bins to complete the table. <BR>\n" );
document.write( "a. Complete the table.<BR>\n" );
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document.write( "b. Construct a histogram representing the data.<BR>\n" );
document.write( "You can do that that with the original data<BR>\n" );
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document.write( "c. Calculate the mean, median, and mode number of hours the teens watch television.<BR>\n" );
document.write( "The mode with be x = 3.5 with frequency 38.<BR>\n" );
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document.write( "d. Calculate the standard deviation.<BR>\n" );
document.write( "Hopefully you have tecnology to do this.<BR>\n" );
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document.write( "e. What percent of the data lies within one standard deviation of the mean?<BR>\n" );
document.write( "I'll leave that to you.<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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