Hi Mr M
For the frequency polygon diagram, I drew the correct bars and joined up the mid points of each bar as you are supposed to.
However, I was doing a practice paper before Monday and it said that the first and last mid point should be joined to make a polygon.
So I did this is the exam and I don't think it is right. Will I lose marks for this or will I still get the marks as I plotted the midpoints and joined them?
Thanks