Dear all
I have created a bar chart which consists of two groups mapped across a ten year period. I want to add the standard deviation for each group, per year. I can add standard deviations but what I'm finding is that Excel then places the same standard deviation for every year.
My question, is how do I amend the standard deviation per group, per year individually?
Forgive me, I'm a little shaky on data matters!
Thank you to anyone who is able to help.
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