Which of the following problems is particularly common for data that have been gathered over time?
A)missing values
B)wrong granularity
C)lack of consistency
D)lack of integration

Question

Quizplus · Accepted Answer

Lack of consistency is a common problem for data that have been gathered over time. This can arise due to changes in data collection methods or changes in definitions of variables over time. For example, if the definition of a variable changes over time, this can lead to inconsistencies in the data across different time periods. Missing values, wrong granularity, and lack of integration can also be problems for time-series data, but lack of consistency is the most common issue.

Which of the Following Problems Is Particularly Common for Data