Conceptions of variation: A literature review

There are two parts to this literature review. The first part includes bibliography directly focusing on variation,: meaning of variation, role of variation in statsitcal reasoing, researchon conceptions of variation, as well as literature discussing the neglect of variation. The second part lists references belonging to four bodies of literature which, although not having the study of intuitions abaout variation as their main object of study, do offer rich insights into people's thinking about variation: literarure on sampling and centers, on intutioons about the stochastic, on the role of technology, and on the effect of the formalist mathematics tradition on statistics education.