Data Science MCQs with answers Page - 5

Dear candidates you will find MCQ questions of Data Science here. Learn these questions and prepare yourself for coming examinations and interviews. You can check the right answer of any question by clicking on any option or by clicking view answer button.
Share your questions by clicking Add Question

📊 Data Science
Q. In Data Science, what is the purpose of data wrangling?
  • (A) To create complex models
  • (B) To transform raw data
  • (C) To visualize data
  • (D) To remove outliers
💬 Discuss
✅ Correct Answer: (B) To transform raw data
📊 Data Science
Q. What is the process of splitting a dataset into a training set and a test set used for machine learning called?
  • (A) Data Partitioning
  • (B) Data Sampling
  • (C) Data Splitting
  • (D) Data Shuffling
💬 Discuss
✅ Correct Answer: (A) Data Partitioning
📊 Data Science
Q. Which of the following is a common algorithm used for classification in supervised learning?
  • (A) K-Means Clustering
  • (B) Decision Tree
  • (C) Principal Component Analysis (PCA)
  • (D) Naive Bayes
💬 Discuss
✅ Correct Answer: (B) Decision Tree
📊 Data Science
Q. What does the acronym "SQL" stand for in the context of Data Science?
  • (A) Structured Query Language
  • (B) Statistical Query Language
  • (C) Simplified Query Language
  • (D) Secure Query Language
💬 Discuss
✅ Correct Answer: (A) Structured Query Language
📊 Data Science
Q. What is the primary focus of Data Science?
  • (A) Data Cleaning
  • (B) Data Visualization
  • (C) Data Analysis
  • (D) Data Storage
💬 Discuss
✅ Correct Answer: (C) Data Analysis
📊 Data Science
Q. Which of the following is NOT a common data format used in Data Science projects?
  • (A) JSON
  • (B) XML
  • (C) CSV
  • (D) HTML
💬 Discuss
✅ Correct Answer: (D) HTML
📊 Data Science
Q. Which of the following is a technique used to handle missing data in a dataset?
  • (A) Data Augmentation
  • (B) Data Imputation
  • (C) Data Transformation
  • (D) Data Normalization
💬 Discuss
✅ Correct Answer: (B) Data Imputation
📊 Data Science
Q. What is the primary purpose of data visualization in Data Science?
  • (A) To make data more complicated
  • (B) To simplify complex data
  • (C) To increase data complexity
  • (D) To store data
💬 Discuss
✅ Correct Answer: (B) To simplify complex data
📊 Data Science
Q. Which step in the Data Science process involves building and training predictive models?
  • (A) Data Collection
  • (B) Data Visualization
  • (C) Data Cleaning
  • (D) Model Building
💬 Discuss
✅ Correct Answer: (D) Model Building
📊 Data Science
Q. What is the process of extracting patterns and information from data called?
  • (A) Data Wrangling
  • (B) Data Visualization
  • (C) Data Engineering
  • (D) Data Mining
💬 Discuss
✅ Correct Answer: (D) Data Mining

Programming Categories

📱 Download Our App

Learn MCQs on the go with our easy-to-use Android app

Get it on Google Play