From Understanding to Preparation >> Data Science Methodology
1.In the case study, during the Data Understanding stage, data scientists discovered that not all the congestive heart failure admissions that were expected were being captured. What action did they take to resolve the issue?
1 / 1 point
Correct: Building a data set is an iterative process. The methods for defining and collecting the data can be refined until all the required information is accurately captured, even if that means looping back to a previous stage in the model.
1.In the case study, working through the Data Preparation stage, it was revealed that the initial definition was not capturing all of the congestive heart failure admissions that were expected, based on clinical experience.
1 / 1 point
Correct: Correct. It was working through the Data Understanding staging that the initial definition was found to be incomplete.
2.During the Data Preparation stage, clients and stakeholders aggregate the data and merge them from different sources, enabling data scientists to use clean data in the analysis.
1 / 1 point
Correct: Correct.
3.Select the correct statement about the Data Preparation stage of the data science methodology.
1 / 1 point
Correct: Correct.
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