Sunday Quiz Solutions [2019/12/01]

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Welcome to the solutions for this week’s Sunday quiz! Today’s topic is Data Science. If you want to participate in our weekly quizzes, make sure to follow us on Instagram.

Q1 (Easy): The most used languages for data science are…

This question was pretty easy. The correct answer is Python & R. Python is a great language to learn because it can be used in so many different ways. One of Python’s main applications is Data Science, but it’s used in Web Development and many more. R is a great language too but it’s not as versatile as Python. R was developed purely with data science-related intentions. The other languages mentioned in the wrong answer choices are all real languages too, but none of them is used for data science purposes.

Q2 (Easy): Which Python library is most commonly used for handling data?

The right answer to this question is Pandas. This library is very powerful as it provides great tools for dealing with data efficiently. Every good data scientist has to know Pandas really well.

Q3 (Medium): Which of the following is one of the key data science skills?

Statistics are very important for data science. You need to know the math behind all the nice and interesting stuff you can do with data to unlock the full potential. Machine learning is a key skill too. Data Science wants to solve problems using data and without machine learning, this wouldn’t be possible. Data Visualization is also very important. One of the first steps you have to take, even before applying any algorithms or something, is to look at the data. All of those are really important skills for data science. Therefore, “all of the above” is the right answer.

Q4 (Medium): Which of the following is *NOT* a machine learning algorithm?

Random Forest, k-NN or k-Nearest-Neighbours and SVM or Scalable Vector Machine are all real machine learning algorithms used in data science. SVG is the right answer to this question as it’s not even an algorithm for anything. “Scalable Vector Graphics (SVG) is an Extensible Markup Language (XML)-based vector image format for two-dimensional graphics with support for interactivity and animation. The SVG specification is an open standard developed by the World Wide Web Consortium (W3C) since 1999.” – Wikipedia.

Q5 (Hard): The ‘Seaborn’ Python library is based on the … Python library

“Seaborn is a Python data visualization library based on Matplotlib. It provides a high-level interface for drawing attractive and informative statistical graphics.” – https://seaborn.pydata.org/
The other choices are also Python libraries used in Data Science, but they have different purposes.

That’s it for today’s solutions to the Sunday Quiz. We hope you enjoyed this week’s episode and keep on learning!

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