Let's say you have, starting in A1:

quantity.......count......cumulative
1.................3
2.................5
4..................9
5..................11
etc
So for the thing being measured (X), when x=1 you have a frequency of 3;
when x=2 frequency = 5, etc
In A2 enter =SUM($A$2:A2) and copy down the column

Now select A1:A(whatever); hold CTRL and highlight C1:C(whatever) - that's
how to select non-adjacent ranges
The hit the Chart Wizard tool and you are away.

Need more?
best wishes
--
Bernard V Liengme
www.stfx.ca/people/bliengme
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