Here is a selection of practice exams that will test your current data science knowledge. Identify key areas of improvement to strengthen your theoretical preparation, critical thinking, and practical problem-solving skills so you can get one step closer towards realizing your professional goals.

Purple blue cover of Data Visualization with ggplot2. This practice exam is from 365 Data Science.
Practice Exams r
Data Visualization with ggplot2

Former computational biologist turned data scientist Elitsa Kaloyanova, created this data visualization practice test where you are accepted as the new data analyst intern in the largest bank in the UK. As your responsibility to guide the finance team in the process of data interpretation, your knowledge on the R programming language and the ggplot2 library are going to be tested in these data visualization with ggplot2 test questions.

Learn More
Yellow Cover of Intro to Data Visualization. This practice exam resource is from 365 Data Science.
Practice Exams python
Intro to Data Visualization

This free Intro to Data Visualization practice exam is designed by the head of 365 Data Science content creation- Elitsa Kaloyanova. These data visualization practice questions revolve around the data base of a well-known supermarket chain, where you as the data analyst, are tasked with the job to boost sales and meet customer needs better. Your ability to choose the right visualization tool, discover meaningful insights and guide business strategy accordingly will be put to the test.

Learn More
Yellow Cover of Data Manipulation with NumPy. This practice exam is from 365 Data Science.
Practice Exams python
Data Manipulation with NumPy

In the case of this Data Manipulation with NumPy practice test created by Data Analytics Instructor Victor Mehandziyski you have decided to revise your knowledge on data preprocessing with NumPy by taking last year’s exam. You are required to answer the questions on this free practice exam that are going to put your data manipulation skills to the test- like substituting missing values in NumPy Ndarrays, sorting them and reordering data in a specific way.

Learn More
Yellow Cover of Statistics with NumPy. This practice exam is from 365 Data Science.
Practice Exams python
Statistics with NumPy

In this free Statistics with NumPy practice exam assessment created by Professional Financial Analyst and 365 Data Science Instructor Victor Mehandziyski you are a data analytics student who wishes to put his knowledge into practice. These set of NumPy exam questions are going to quiz your knowledge on statistical functions in NumPy- like finding the minimal or maximum values, identifying the median, and the correlation or covariance between rows.

Learn More
Yellow Cover of Generalizing Data with NumPy. The practice exam resource  is from 365 Data Science.
Practice Exams python
Generalizing Data with NumPy

365 Data Science Content Creator Viktor Mehandziyski created this Generalizing Data with NumPy practice test where funnily enough, you are an aspiring data analyst who is required to pass a Python exam to proceed with the course. These free NumPy practice exam is going to test your ability to generate arrays of random and non-random data and creating arrays to solve classic statistical problems.

Learn More
Yellow Cover of NumPy Fundamentals. This practice exam is from 365 Data Science.
Practice Exams python
NumPy Fundamentals

365 Data Science Instructor Viktor Mehandziyski created this free practice exam on NumPy Fundamentals where you are going to help two computer science students with their upcoming coursework by taking some sample exams. As you help them with revision, the NumPy questions are going to test your understanding of how to perform basic functions with arrays- like slicing, assigning values and determining dimensions.

Learn More