[samatman]

This is wrong twice I'm afraid.

First: a graph with two infinite dimensions doesn't have a top right point, it has a top right extent.

Second: when graphing, you don't get to pick what the normal is. That's a property of the graph. It is not the (impossible) property you've described.

[hhh]

Choosing the normal in this case would mean the most common among the population would it not?

[samatman]

Precisely, the highest point on the curve where the derivative is zero.

[Jarwain]

I feel like two different definitions of 'normal' are at odds here. 'Normal' in the context of a graph, and 'normal' to mean typical or usual

[samatman]

The semantics are chosen to be as close to identical as is feasible given data.