3.2.2.Explore data credibility - quanganh2001/Google-Data-Analytics-Professional-Certificate-Coursera GitHub Wiki
Test your knowledge on data credibility
Question 1
Which of the following are usually good data sources? Select all that apply.
- Vetted public datasets
- Governmental agency data
- Academic papers
- Social media sites
Explain: Vetted public datasets, academic papers, and governmental agency data are usually good data sources.
Question 2
To determine if a data source is cited, you should ask which of the following questions? Select all that apply.
- Is the data relevant to the problem I'm trying to solve?
- Who created this dataset?
- Is this dataset from a credible organization?
- Has this dataset been properly cleaned?
Explain: “Is this dataset from a credible organization?” and “Who created this dataset?” are questions that can help you determine if a data source is cited.
Question 3
A data analyst is analyzing sales data for the newest version of a product. They use third-party data about an older version of the product. For what reasons is this inappropriate for their analysis? Select all that apply.
- The data is not orginal
- The data is biased
- The data is not accurate
- The data is not current
Explain: Third-party data about an older version of the product is inappropriate because it is not original or current.