Just one. The traffic gets randomly routed through the nodes. Gather your stats over a single exit node and you’ve got your stats for the whole network.
The longer you gather your stats over the node the closer they are to the precise stats for the whole network.
Just like you can poll 1000 random people and have a good, almost accurate, guess who’s the entire country gonna vote for.
one or all?
Just one. The traffic gets randomly routed through the nodes. Gather your stats over a single exit node and you’ve got your stats for the whole network. The longer you gather your stats over the node the closer they are to the precise stats for the whole network.
Just like you can poll 1000 random people and have a good, almost accurate, guess who’s the entire country gonna vote for.