Question: Cumulative histogram and corresponding polygon

I have the following data

Dados:=[-9.43, -4.42, -4.04, -2.88, -1.90, -1.81, -1.20, -1.16, -1.03, -.14, 1.27, 1.72, 1.97, 1.98, 2.24, 3.24, 3.64, 3.8, 5.1, 5.52]

and using command

Histogram(Dados, binbounds = [-10, -7, -4, -1, 2, 5, 8], frequencyscale = absolute)

I can create a frequency histogram for the classes [-10,-7[, [-7,-4[, [-4,-1[, [-1,2[, [2,5[, [5,8[. However, how I can create a cumulative histogram with corresponding polygon employing this same information? With thanks.

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