format/instal Yosemite on SSD before installing? No disk

I am upgrading to an SSD drive (samsung 850 evo) and I want to install Yosemite on the SSD before putting it into the macbook. Possible? I don't have a physical copy of Yosemite.

 

I may have snow leopard disks somewhere but, it seems like it should be quicker this way shouldn't it?.


MacBook Pro (13-inch Early 2011), OS X Yosemite (10.10.5)
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