Box and Whisker Plot

1. To draw a box and whisker graph, you have to draw a scale that includes the highest and lowest numbers.
   1. You then plot the highest number, lowest number,median, lower quartile and upper quartile.
      1. Then join the lower quartile and upperquartile to make a box.
         1. Join the boxes to the highest and lowest number with the 'whiskers'.
      2. How to work out the median

         Nota:

         • http://www.mathsisfun.com/median.html
      3. How to find the Lower and Upper Quartile

         Nota:

         • http://www.onlinemathlearning.com/quartile.html

Nota:

• https://www.google.co.uk/search?hl=en&sugexp=cappsweb&gs_rn=9&gs_ri=psy-ab&tok=3DfbwHktHEhnjexsXt7vww&cp=8&gs_id=u&xhr=t&q=box+and+whisker+plot&safe=off&bav=on.2,or.r_cp.r_qf.&bvm=bv.45512109,d.d2k&biw=1441&bih=678&wrapid=tljp1366658895188012&um=1&ie=UTF-8&tbm=isch&source=og&sa=N&tab=wi&ei=VI91UbStD9Sd0wWshoHQBg#imgrc=ysLCeTib_xnOOM%3A%3B42LZ-OD3qgZxaM%3Bhttp%253A%252F%252Fwww.bbc.co.uk%252Fschools%252Fgcsebitesize%252Fmaths%252Fimages%252Ffigure_86.gif%3Bhttp%253A%252F%252Fwww.bbc.co.uk%252Fschools%252Fgcsebitesize%252Fmaths%252Fstatistics%252Frepresentingdata3hirev6.shtml%3B546%3B214

1. Draw this:
   1. The oldest person in Mathsminster is 90. The youngest person is 15.
      1. The median age of the residents is 44, the lower quartile is 25, and the upper quartile is 67.
         1. ANSWER

            Nota:

            • https://www.google.co.uk/search?safe=off&q=box+and+whisker+plot+bitesize&bav=on.2,or.r_cp.r_qf.&bvm=bv.45512109,d.d2k&biw=1441&bih=678&wrapid=tlif136665919062110&um=1&ie=UTF-8&hl=en&tbm=isch&source=og&sa=N&tab=wi&ei=fJB1UdRzobrRBc6jgegC#imgrc=sDs5HqnhE3EytM%3A%3BFxzR77uOP5tD5M%3Bhttp%253A%252F%252Fwww.bbc.co.uk%252Fbitesize%252Fstandard%252Fmaths_ii%252Fimages%252Ffigure_87.gif%3Bhttp%253A%252F%252Fagainwhatis.com%252FWhat-is-a-boxplot%3B546%3B89