Identification with a group based on shared characteristics, including skin color, place of origin, cultural ties, and language is called

Ethnicity

Explanation:

Ethnicity corresponds to the indentification between a group of people that identify with one another based on shared characteristics like skin color, place of origin, cultural ties and language, that is Ethnicity. It more often than not makes reference to regions of the world or countries, for example being irish is an ethnicity, but also being jewish is an ethnicity so it can involve regions, countries or religions.

the histogram that represents the data with the largest spread is data set b