I wonder if they take into account the idea that you have some prior reference for expected object counts. I felt like this is an important mechanism at play w

I wonder if they take into account the idea that you have some prior reference for expected object counts. I felt like this is an important mechanism at play when I read the classroom example. If I saw a picture of a classroom for 2 seconds and am then asked to estimate the chair count, in my head it goes something like: mean #chairs in classrooms in my experience * fullness of the classroom in picture (e.g. .5-2 range) = count estimate.