Data Science MCQ Quiz

What is the correct order of the Data Science Life Cycle?

• Data Cleaning → Data Collection → Data Analysis → Data Visualization

• Data Collection → Data Cleaning → Data Analysis → Data Visualization

• Data Analysis → Data Collection → Data Cleaning → Data Visualization

• Data Collection → Data Visualization → Data Cleaning → Data Analysis

Which of the following is NOT a valid step in the data science process?

• Data Modeling

• Data Broadcasting

• Data Cleaning

• Data Visualization

In the context of data science, 'cleaning' data means:

• Deleting all the data

• Removing irrelevant or incorrect data

• Encrypting the data

• Visualizing the data

Which of the following is a tool used for data visualization?

• MS Word

• Google Sheets

• Power BI

• Notepad

What is the main goal of data science in Artificial Intelligence?

• To design user interfaces

• To reduce file sizes

• To make data-driven decisions

• To store data in hard drives

Which programming language is most commonly used in data science?

• Java

• Python

• HTML

• Scratch

A data scientist is trying to group customers based on their shopping behavior. What is this technique called?

• Classification

• Clustering

• Regression

• Segmentation

Data in data science is mostly taken from:

• Textbooks

• Real-world sources

• Fictional stories

• Comic books

Which of these is an example of a structured dataset?

• A photograph

• A video recording

• A spreadsheet with rows and columns

• A handwritten note

What type of chart is ideal for showing proportions or percentages?

• Line Chart

• Pie Chart

• Scatter Plot

• Bar Chart