Hello everyone,

I have two th2 histograms, I want to divide one by another. However, the error bars(sqrt of entries) are too big if I do it this way. So I want to have the errors in each histogram calculated before, and then divide them too, the same way as I divide the histogram. The image shows the error after dividing one histogram by the other. The plot (th1) shown is the projection of each bin of the th2 histogram after division.

I want to find a way to calculate the error bars for th2 before dividing it with another histogram, So that I do not have the errors bar too big?

Please, let me know if you need any more information.

Thank you for taking the time to read.

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