In continuing with the statistics module cleanup `stats.betai` and `stats.chisqprob` were identified as candidates for deprecation. These functions are basically just aliases, delegating to `special.betainc` and `special.chdtrc` respectively.

In accordance to gh-2741, the preferred way to use these distributions is via the corresponding `stats.distribution` function or by calling the `scipy.special` function directly.

If there are any objections to deprecating these functions, please voice them here so we can ponder and make a decision.

For more details refer to the following issues:

Cheers,

Abraham.