foundations of data science coursera week 1 quiz answers
Assess your readiness for the Advanced Analytics Data Certificate
1. What is data science?
- A process used to solve complex problems in a user-centric way
- A tool for organizing data elements and how they relate to one another
- The collection, transformation, and organization of data in order to draw conclusions, make predictions, and drive informed decision-making
- A field of study that uses raw data to create new ways of modeling and understanding the unknown
2. What is the key difference between qualitative and quantitative data?
- Qualitative data describes the kind of data being analyzed; quantitative data describes how much data is being analyzed.
- Qualitative data is about the quality of a product or service; quantitative data is about how much of that product or service is available in the marketplace.
- Qualitative data is subjective; quantitative data is specific.
- Qualitative data measures qualities and characteristics; quantitative data measures numerical facts.
3. Which of the following statements accurately describe wide and long data? Select all that apply.
- Wide data subjects can have multiple rows that hold the values of subject attributes.
- Long data subjects can have data in multiple columns.
- Long data subjects can have multiple rows that hold the values of subject attributes.
- Wide data subjects can have data in multiple columns.
4. Structured data is likely to be found in which of the following formats? Select all that apply.
- Spreadsheet
- Audio file
- Database table
- Digital photo
5. Fill in the blank: A Boolean data type can have _____ possible value(s).
- three
- two
- one
- infinite
6. What is the term for the individuals who have invested time and resources in a project and are interested in its outcome?
- Subject-matter experts
- Executives
- Stakeholders
- Project sponsors
7. When collecting data for a study, what are some reasons to consider sample size? Select all that apply.
- To collect data that represents a diverse set of perspectives
- To include as many participants as possible in the study
- To make sure a few unusual responses don’t skew results
- To eliminate certain segments of a population
8. The SMART methodology can be used to ask a question that promotes change. What type of SMART question leads to change?
- Transformational
- Motivational
- Action-oriented
- Results-focused
Shuffle Q/A 1
9. Which of the following inquiries are leading questions? Select all that apply.
- How did you learn about our company?
- In what ways did our product meet your needs?
- How satisfied were you with our customer representative?
- What do you enjoy most about our service?
10. What are the key characteristics of a metric? Select all that apply.
- Metrics are quantifiable.
- Metrics are used for measurement.
- Metrics can be used to evaluate performance.
- Metrics are unorganized collections of facts.
