[R] Off topic --- underdispersed (pseudo) binomial data.

Rolf Turner r@turner @end|ng |rom @uck|@nd@@c@nz
Thu Mar 25 06:40:55 CET 2021

On Wed, 24 Mar 2021 18:45:01 -0700
<Name suppressed to protect the innocent> wrote:

> "X = {X_1, X_2, ..., X_N} where each X_i
> is an integer between 0 and n (n known a priori)"
> That is a multinomial, not a binomial distribution. A binomial
> distribution can have only two values, success or failure.
> What have I misunderstood?

And then, following up:

> Oh, I think I get what you mean -- you are drawing repeated samples
> from a binomial with n trials and you are counting the number of
> successes for each.

Yes.  Exactly.  Sorry if my post was unclear.


Rolf Turner

Honorary Research Fellow
Department of Statistics
University of Auckland
Phone: +64-9-373-7599 ext. 88276

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