Jon- Your description of air and your definition of mixtures are good. However, we were asked why we believe that air is a mixture. In other words, we were asked for evidence. The sort of facts you cite were not discovered by reading textbooks but by doing real experiments.
Ingroup bias, sometimes known as in-group favoritism, in-groupâout-group bias or intergroup bias, refers to a pattern of favoring members of oneâs in-group over out-group members.This can be expressed in evaluation of others, allocation of resources and many other ways.ngroup bias, sometimes known as in-group favoritism, in-groupâout-group bias or intergroup bias, refers to a pattern of favoring members of oneâs in-group over out-group members.
A definition of the term bias, which refers to a consistent departure of the expected value of a statistic from its parameter, is presented. 1  sampling theory (20th century) Mathematics. // 2  Dictionary of Theories;2002, p472. review of the article Revisiting Bias Due to Construct Misspecification: Different Results From Considering Coefficients in Standardized Form by Miguel I. Aguirre-Urreta and George M. Marakas, which is in this issue, is presented. 1  Dark and Windy Night.