Answer:
We tend to underestimate the variability within a category and overestimate the variability between categories.
Step-by-step explanation:
- The way we think is usually governed by our past experiences and the prejudices that we bear.
- The influence of these two factors makes us ignore the present-day facts regarding the concerned things and we tend to think stereotypically.
- While doing that, we often underestimate the possibility of variation within the frame of our work and overestimate the variability between the categories other than that of our concern.