Scaling the Y-Axis of a histogram

I have the following code.

a = RandomInteger[{0, 1}, {10000, 1000}];
Histogram[Total[a, {2}], PlotRange -> {{0, 1000}, Automatic}]

I want to scale the y axis by a factor of 1000 in order to normalize. Could you please help me with that?

Answer

Histogram[Total[a, {2}], Automatic, #2/1000 &, 
 PlotRange -> {{0, 1000}, Automatic}, Frame -> True]

Comments

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