The Size of the pool does matter. It Has to be big enough to take blocks. So long that it can take blocks at a relative frequency, No pool is going to pay out shares of blocks that they take no stake in if they cannot get a block to begin with.
That being said, the smaller of the largest is the best.
A block is a block, it pays a set amount, getting that ...
It means "solutions per second" and means the number of attempts per second made at generating a valid block.
In Bitcoin, where 1 hash is equivalent to 1 attempt at a potential valid block, it's equivalent to "hashes per second".
Better Late than Never. I was asking myself the same question...I thought the hash rate of the network came from Full Nodes observation on Miners...I was wrong.
I was looking for this answer on Bitcoin.org, but it's on Blockchain website: https://www.blockchain.com/charts/hash-rate. Look at the methodology at the bottom of the page.
Formula is Hash rate = (...