Notation help please. When approximating binomial with normal, should I be using a different letter? See image. Are both ok? Neither? Something else? @susanwhitehouse.bsky.social@mrsouthernmaths.bsky.social@tlmaths.bsky.social@danihosford.bsky.social

Or is there some ~ with a dot above notation that I don’t know about?

I would use a different letter and I think I actually avoid the "approximately equal to" symbols altogether though I don't know if I need to. So I go X, then the Binomial notation, then in words "X can be approximated by Y", then Y with normal notation.

I always use a different letter as they’re two different random variables

Nothing more to add here, I always have done Y to represent the new distribution (with the ~ sign)