What to do with the [average] tag?

is a tag applied to 3 questions. It currently has no tag wiki, and the tag excerpt reads

This challenge is related to average or arithmetic mean.

Currently, this is a very specific tag which is arguably covered by the tag. However, nothing in the very short tag wiki explicitly says that it covers averages, and it could be beneficial to have a separate tag for challenges around averages.

"average" does have more than one mathematical meaning however - the median and mode are both averages, and there are many different means than just the arithmetic mean. The tag could reasonably be expanded to include these as well.

There are 259 questions that mention "average", 23 that mention "arithmetic mean" and 391 that mention "mean", none of which have the tag. If we decide to keep, or even expand, the tag, it could require some effort to properly find and then retag relevant questions

I brought this up in chat with no real conclusion. Currently, is a suggested synonym of $$\{}^\dagger\$$. However, it is still being voted on, so 3 negative votes could reject this (I recommend that no one "jumps the gun" until a decision is made, tag synonyms are enough of a hassle without having to do them twice).

Therefore, of the options below, what should we do with the tag?

• Synonymise it with , and (optionally) remove it from the 3 questions it is currently on,
• Expand its scope, edit its tag wiki and begin applying it to more challenges,
• What should the expanded scope cover?
• Do nothing and leave the tag as it is, or
• Do something else?

$$\\dagger\$$ Mostly by mistake - I didn't think I had the required score in to suggest it, and expected to be blocked from suggesting it