Faulty generalization
A faulty generalization is an informal fallacy wherein a conclusion is drawn about all or many instances of a phenomenon on the basis of one or a few instances of that phenomenon. It is similar to a proof by example in mathematics.[1] It is an example of jumping to conclusions.[2] For example, one may generalize about all people or all members of a group from what one knows about just one or a few people:
https://en.wikipedia.org/wiki/Faulty_generalization#Hasty_generalization
Seonglae Cho
