10th Class Computer Chapter 5 TestUNIT 05: INTRODUCTION TO DATA SCIENCE

Q1. Multiple choice questions (Attempt all · 10 × 1 = 10)

1. After cleaning a messy survey table, there is a need to store the cleaned data in a ....... format:

   1. Messy 

   2. Proper

   3. Random 

   4. Hidden 

2. Final step of the DSLC method:

   1. Data visualization

   2. Data Interpretation

   3. Data Analysis

   4. None of them

3. In Figure 5.1, what does the vertical axis (y-axis) represent?

   1. Names of sports 

   2. Frequency or No. of Students

   3. Names of schools

   4. Days of the week

4. Which can lead to mistakes?

   1. Analyzing data

   2. Make a guess

   3. Visualizing

   4. Collection through survey

5. What is the first step in the Data Science Life Cycle (DSLC)?

   1. Collecting Data

   2. Visualizing Data

   3. Understanding the Problem

   4. Analyzing the Data

6. To find the "Chart" option in Google Sheets, which menu must you click first?

   1. File 

   2. Edit

   3. Insert

   4. Fromat

7. Charts make it easier to ........ and present data.

   1. Delete 

   2. Hide 

   3. Understand 

   4. Ignore 

8. A relational store information in the form of ........:

   1. Slides

   2. Tables

   3. Blocks

   4. Layers

9. Cleaned data should be stored so that it is organized, searchable, and ready to .......:

   1. Delete 

   2. Hide 

   3. Analyze

   4. Forget 

10. Which of the following is an example tool for Databases?

    1. Excel 

    2. Excel 

    3. MySQL and SQLite 

    4. Microsoft Word