Is there a name for numeric bias?

Solution 1:

Representativeness heuristic or bias (Holtgraves & Skeel, 1992):

a tendency to judge the probability of an event based on the extent to which the event is similar to the parent population; the more similar the event is to the population, the higher the perceived probability that it comes from that population.

A study done by Krawczyk and Rachubik (2019) seems to confirm this bias. People that choose to stick with random-looking combinations, even when offered a reward for switching, justify their choice by "more random numbers" (50% of the people) and "higher probability" (16% of the people).