You are asked to create a plot comparing the distribution of a variable across different categories, highlighting the median and interquartile range. Which Seaborn plot would you choose?
- Box Plot
- Line Plot
- Swarm Plot
- Violin Plot
To compare the distribution of a variable across categories while highlighting the median and interquartile range, a Violin Plot in Seaborn is a suitable choice. It combines a box plot with a kernel density estimation to provide a richer visualization of the data distribution.
Which Python library is specifically designed for creating static, interactive, and real-time graphs and plots?
- Matplotlib
- NumPy
- Pandas
- Seaborn
Matplotlib is specifically designed for creating static, interactive, and real-time graphs and plots in Python. It is a widely-used plotting library for data visualization.
Which Python library would you use for implementing machine learning algorithms and is known for its simplicity and efficiency?
- Matplotlib
- Numpy
- Pandas
- Scikit-learn
Scikit-learn (or sklearn) is a widely-used Python library for machine learning. It provides a simple and efficient way to implement various machine learning algorithms, making it a popular choice among data scientists and developers.
Which Python library would you use to perform elementary matrix operations and computations?
- Matplotlib
- NumPy
- Pandas
- TensorFlow
You would use the NumPy library for elementary matrix operations and computations. NumPy provides a powerful array object and functions to manipulate arrays efficiently.
Which Python module is commonly used for writing unit tests?
- debugger
- logging
- pytest
- unittest
The unittest module is commonly used in Python for writing unit tests. It provides a testing framework to create and run test cases and manage test suites. While pytest is another popular testing framework, it's not a module but an external library. debugger and logging are unrelated to writing unit tests.
Which method in Scikit-learn would you use to tune hyperparameters of a model?
- fit()
- gradient_boosting()
- GridSearchCV
- predict()
GridSearchCV is used in Scikit-learn for hyperparameter tuning. It performs an exhaustive search over specified hyperparameter values to find the best combination for the model.
Which method is commonly used to send data from a web form to a Python back-end?
- FETCH
- GET
- POST
- PUT
The common method used to send data from a web form to a Python back-end is POST. When a user submits a form, the data is sent to the server using the POST method, which allows for secure transmission of sensitive information. GET is used to retrieve data, while PUT and FETCH serve other purposes in web development.
Which of the following data structures is best suited for a First In First Out (FIFO) approach?
- Binary Tree
- Hash Table
- Queue
- Stack
A queue is a data structure that follows the First In First Out (FIFO) approach. It means that the first element added to the queue will be the first one to be removed. Queues are often used in scenarios like scheduling tasks or managing resources in a sequential manner.
Which of the following sorting algorithms is most efficient for small-sized data sets?
- Bubble Sort
- Insertion Sort
- Merge Sort
- Quick Sort
Insertion sort is the most efficient sorting algorithm for small-sized data sets. It has a simple implementation and performs well when the number of elements is small. Other sorting algorithms like Quick Sort and Merge Sort are more efficient for larger data sets.
Which Pandas function is used to read a CSV file into a DataFrame?
- read_csv()
- read_excel()
- read_json()
- read_sql()
The correct function to read a CSV file into a DataFrame in Pandas is read_csv(). It's used to load data from a CSV (Comma-Separated Values) file into a tabular data structure.