Question: Histogram vector, starts from 0

I have question how start histogram from 0? I have vector with probablity which start from 0.

I generate samples from my probablity:

pr=values of probablity



Q=Histogram(A, binwidth=1,range=0..10):


I try to use bindwidth=-1 but it's impossible. 

How start histogram from 0 for vectors in maple15?

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