Data Science & Analytics

What is the primary goal of Data Science?

• To create websites

• To analyze and interpret complex data

• To manage databases

• To design user interfaces

Which of the following is NOT a key fact of data in Data Science?

• Volume

• Velocity

• Variety

• Visualization

What does the term ‘Big Data’ refer to?

• A large amount of structured and unstructured data

• Data stored in small databases

• A small set of numerical data

• Data that is only structured

How many steps are there in the Data Science process?

• Four

• Five

• Six

• Seven

Which of the following is NOT a step in the Data Science process?

• Data collection

• Data warehousing

• Data cleaning

• Data modeling

Which of the following is a common ecosystem for Data Science?

• Python and R

• Microsoft Word

• Adobe Photoshop

• Notepad

In Machine Learning, what is supervised learning?

• Learning without labeled data

• Learning with labeled data

• Learning through trial and error

• Learning by observing human actions

What is an example of an application of Machine Learning?

• Image recognition

• Cooking recipes

• Typing documents

• Printing newspapers

Which of the following is an example of an unsupervised learning technique?

• Decision Trees

• K-Means Clustering

• Linear Regression

• Support Vector Machines

What is the role of data visualization in Data Science?

• To store large data

• To create complex mathematical models

• To represent data in a graphical format for better understanding

• To delete unnecessary data