NIAGARA random size with curve?

Development Asset Creation FX
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1

Hi,

I want my sprites to have a random size, BUT i’d like to drive the randomness from a curve.
So my size goes from 1-10, but i want 90% of my particles to be a size between 1-5 and 10% of my particles to have a size of 5-10 if that makes any sense.

https://forums.unrealengine.com/filedata/fetch?id=1643735

Just starting out with niagara so it might be super obvious ^^

thanks!