In which way that big data is collected lead to unexpected biases?
A) When qualitative data are involved
B) When the database is has systematic omissions
C) When qualitative and quantitative data are included simultaneously
D) When data used are from different levels of analysis

Question

Quizplus · Accepted Answer

When a database has systematic omissions, it may not capture certain groups or variables, resulting in biases. For example, if a medical database only includes data from patients who can afford expensive treatments, then it would not be representative of the general population and would have biases towards wealthier patients.

In Which Way That Big Data Is Collected Lead to Unexpected