Naan Mudhalvan Recap Quiz

1. What is the primary goal of data analytics?

• Storing data securely

• Analyzing raw data to make informed decisions

• Deleting unnecessary data

• Increasing data file sizes

Answer explanation

Analytics is the discovery, interpretation, and communication of meaningful patterns or summary in data.

Data analytics is the process of collecting, analyzing, and interpreting large datasets to find patterns, trends, and correlations.

1. Which of the following is a common tool used in data analytics?

• Microsoft Word

• Excel

• PowerPoint

• Photoshop

2. In a recent project, Aarav and Kiara were tasked with analyzing customer feedback data for a new product launch. What type of data is typically analyzed in data analytics?

• Only numerical data

• Only textual data

• Both numerical and categorical data

• Only image data

3. What is a key benefit of using data analytics in business?

• Increasing the number of employees

• Eliminating all risks

• Improving decision-making processes

• Reducing employee workload

Which of the following is NOT a type of data analytics?

• Descriptive Analytics

• Diagnostic Analytics

• Predictive Analytics

• Fictional Analytics

What is the first step in the data analytics process?

• A) Data Collection

• B) Data Cleaning

• C) Data Visualization

• D) Reporting

In data analytics, what is the purpose of data cleaning?

• A) Making the dataset look visually appealing

• B) Removing errors and inconsistencies from the data

• C) Organizing data into folders

• D) Adding more data to improve accuracy

In a recent project, Myra used analytics to forecast the sales trends for the upcoming quarter. What type of analytics did she employ to make these predictions?

• Descriptive Analytics

• Predictive Analytics

• Diagnostic Analytics

• Prescriptive Analytics

Which of the following best describes data visualization?

• Storing data in multiple formats

• Representing data graphically for better understanding

• Writing reports based on data findings

• Encrypting data for security

What does correlation in data analytics indicate?

• A cause-and-effect relationship between two variables

• A random connection between two datasets

• A relationship showing how two variables move together

• The accuracy of a machine learning model