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When should relative frequencies be used when comparing two data sets?
When comparing large data sets.
How is a bar graph used to display data?
It shows the amount of the surveyed matter or other sets of data. They are good comparing sets of the data that just have an amount.
When is a bar graph useful?
when a sets of data can be separated by 2 orders of variables, which are the independent & dependent variables.
What does a double bar graph compare in two sets of data?
When you are talking about data that is not continous. When you are talking about data that is not continous.
What is the significance of data models?
The model's main function is to help us understand the complexities of the real-world environment. Within the database environment, a data model represents data structures and their characteristics, relations, constraints, and transformations. Good database design uses an appropriate data model as its foundation. Plus, a data model provides a blueprint of the data that is required for a functional system.
