Analytical Problem

Which one is not CRISP-DM steps?

• Business Issue Understanding

• Presentation

• Data Mining

• Data Understanding

What are 3 important keys of Business Issue Understanding?

• Decision, Information, Analysis

• Information, Problem Solving, Decision

• Information, Analysis, Prediction

• Problem Solving, Prediction, Decision

What is Data Understanding?

• Knowing your data field as a data column in your spreadsheet model

• Recognize initial data collection and proceeds with activities to get familiar with the data

• Explain details on first insight of unstructured raw data

• Simplified data model in order to form hypotheses

Which is the common step used in data preparation?

• Wrangling

• Calculating

• Modeling

• Formatting

What is the important steps of analysis and modeling after determine methodology?

• Move the validation phase

• Build a model

• Determine important variables

• Run the model

Which one doesn't explain why validation is important

• Able to blend your data with other datasets to enrich it with additional variables

• Ensure the results make sense within the content of the business problem

• Observe the key results on the model

• Determine whether to proceed to the next step or return to a previous phase

What should we do when presenting with complex data? (Select 3)

• Visualize it

• Show analytical process

• Reference data sources

• Measure Success