Is Pearson chi^2 test conditional?

[Jin Kim]

Dear list members

I am a student studying contingency table analysis these days.
I have a question about the underlying statistical concept of Pearson
chi^2 test.
My question is:

Does Pearson chi^2 test assume that both row and column margins are
fixed?

In other words, I wish to know whether Pearson chi^2 test is
'conditional' like Fisher's exact test.

Thank you.


Jin Kim