Hello I have this assignment. I will translate it (because it is not english)
This is the assignment: [IMG]http://i68.tinypic.com/2cgoby9.jpg[/IMG]
(if u cant click on the above link, then u can see it here http://tinypic.com/view.php?pic=2cgoby9&s=9)
So it says:
In an examination of young pigs' birth weight 853 newborn pigs were weighted. The weighting is shown in the table down below.
[0,5-0,7] [0,7-0,9] [0,9-1,1] [1,1-1,3] [1,3-1,5] [1,5-1,7] [1,7-1,9] [1,9-2,1] [2,1-2,3] -> WEIGHT in kg
         --> number of pigs
Draw a cumulative frequency curve of the weighting and determine the kvartils.
SO I usually do this in Maple, but this time I did a matrix but nothing happened.. I dont know how I should draw this curve? Help please.