Regardless, you don't know what other people's chore splits are like. It's not something you can observe.
Yes, you definitely can. Easiest solution is to ask them, but you could also do observational studies if you had the funds.
Here's one example where we asked: http://www.gallup.com/poll/106249/wives-still-laundry-men-ya...
Regardless, you don't know what other people's chore splits are like. It's not something you can observe.