Data Science Quiz

What are the key facets of data science?

• Data collection, Data cleaning, Data visualization

• Data manipulation, Data storage, Data retrieval

• Machine learning, Deep learning, AI

• None of the above

Which of the following best describes the data science process?

• Gathering data, analyzing data, making decisions

• Cleaning data, storing data, archiving data

• Only performing machine learning tasks

• Running SQL queries on databases

What is NumPy mainly used for?

• Data visualization

• Handling arrays and numerical computations

• Web scraping

• Data storage

Which function is used to create an array in NumPy?

• np.array()

• np.create()

• np.list()

• np.matrix()

How do you create an identity matrix in NumPy?

• np.identity()

• np.eye()

• np.ones()

• Both a and b

What does the np.split() function do?

• Joins arrays

• Splits arrays

• Deletes arrays

• Copies arrays

What is the correct syntax for indexing a NumPy array?

• array[1]

• array(1)

• array{1}

• array<1>

How do you reshape a NumPy array?

• np.reshape(array, new_shape)

• array.resize(new_shape)

• np.modify(array, new_shape)

• Both a and b

Which library is primarily used for data manipulation in Python?

• NumPy

• Pandas

• Matplotlib

• Seaborn

What is a DataFrame in Pandas?

• A two-dimensional labeled data structure

• A single column of data

• A type of NumPy array

• A function for visualization