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Data Science Fundamentals

Data Science

Test your knowledge on essential data science concepts, tools, and terminology.

data science statistics technology

8 Questions Easy Ages 5+ Oct 1, 2026

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About this Study Set

This study set covers Data Science through 8 practice questions. Test your knowledge on essential data science concepts, tools, and terminology. Every question includes the correct answer so you can learn as you go — pick any format above to get started.

Questions & Answers

Browse all 8 questions from the Data Science Fundamentals study set below. Each question shows the correct answer — select a study format above to practice interactively.

1 Which programming language is famous in data science for using libraries like Pandas and NumPy?

A Python
B HTML
C C++
D JavaScript

2 In database management, what does the acronym SQL stand for?

A Simple Query Logic
B Structured Query Language
C Sequential Data List
D System Quality Link

3 What is the middle value in a sorted dataset called?

A Mean
B Mode
C Median
D Range

4 What is a data point that differs significantly from most other data points in a dataset called?

A Outlier
B Cluster
C Centroid
D Node

5 In data storage, what does the file format extension CSV stand for?

A Computer Storage Vector
B Central System Value
C Comma-Separated Values
D Code Structured Variable

6 Which chart type displays individual data points on a two-dimensional graph to show relationships between variables?

A Pie chart
B Bar chart
C Scatter plot
D Histogram

7 What type of machine learning uses data that is already labeled with correct answers?

A Unsupervised learning
B Supervised learning
C Reinforcement learning
D Clustering

8 Which three 'Vs' traditionally define the core characteristics of Big Data?

A Volume, Velocity, Variety
B Value, Validity, Vision
C Vector, Variable, Volume
D Visual, Virtual, Velocity

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