Referring to the map of the temperature field in the room, what was the largest variation in temperature?

Answer: Depends on what's residing in the room.

Explanation: If the room in fact is maintaining a certain temperature without any kind of changes, that it will be constant.

If we have external variation then our temperature will vary just a little

But if we fill the room with a crowd of warm bodies (humans) then temperature will increase a few degrees.

the largest variation will be within the range of room and body temperature since person is residing in the room

I. e 25 - 37 degree Celsius

Explanation:

this is because the more the resident the more the room temperature inceases