Explore Online Courses
Free Courses
Hire from us
Become an Instructor
Reviews
All Courses
Submit
Submit
Take the Free Python Practice Test
Free Practice Test
Instructions:
FREE test and can be attempted multiple times.
60 Minutes
30 Multiple Choice Questions
Fill in the Details to Get Started
Select your preference
Self-learning and knowledge validation
Completed a course & revising
Just curious
By providing your contact details, you agree to our
Terms of Use
&
Privacy Policy
Welcome to your What is Data Science
What is the primary goal of data science?
Predicting the future
Analyzing past events
Making sense of big data
Creating algorithms
In data science, what does EDA stand for?
External Data Analysis
Exploratory Data Analysis
Effective Data Analytics
Enterprise Data Architecture
Which programming language is commonly used for data analysis in data science?
Java
C++
Python
Ruby
What is the process of cleaning and organizing raw data into a usable form called?
Data Mining
Data Cleaning
Data Wrangling
Data Shaping
What does the acronym SQL stand for in the context of data science?
Structured Question Language
System Query Language
Structured Query Language
Systematic Query Logic
Which type of machine learning algorithm is used for classification tasks?
Regression
Clustering
Classification
Association
What is the term for a statistical measure that describes the dispersion of a dataset?
Mean
Median
Range
Standard Deviation
Which of the following is a supervised learning algorithm?
K-Means Clustering
Decision Tree
K-Nearest Neighbors
Apriori Algorithm
What is the purpose of a decision tree in machine learning?
Regression Analysis
Classification
Clustering
Dimensionality Reduction
What is the significance of the term "overfitting" in machine learning?
Underutilizing Data
Fitting the Model too Closely to the Training Data
Ignoring Outliers
Focusing Only on Feature Importance
Which type of data visualization is suitable for displaying the distribution of a single continuous variable?
Scatter Plot
Histogram
Pie Chart
Bar Chart
What is the purpose of cross-validation in machine learning?
Testing the Model on Unseen Data
Training the Model Multiple Times on Different Subsets of the Data
Adjusting Hyperparameters
Feature Selection
Which of the following is not a step in the CRISP-DM (Cross-Industry Standard Process for Data Mining) model?
Data Understanding
Data Cleaning
Model Deployment
Model Training
What is the term for the process of converting categorical data into numerical form for machine learning models?
Encoding
Decoding
Imputing
Normalizing
What is the primary purpose of A/B testing in data science?
Feature Selection
Model Evaluation
Comparing Two Versions of a Product to Determine Which Performs Better
Data Visualization
Time is Up!