AI Bootcamp: 2024 Edition- Session 2

How do you create a 1D NumPy array with the values 1, 2, 3, and 4?

• np.array([1, 2, 3, 4])

• np.create([1, 2, 3, 4])

• np.new_array([1, 2, 3, 4])

• np.make_array([1, 2, 3, 4])

What will be the output of the following code: arr = np.array([1, 2, 3, 4]); arr[1]?

• 1

• 2

• 3

• 4

Which of the following is the correct way to slice the first three elements of a NumPy array arr = np.array([10, 20, 30, 40, 50])?

• arr[0:3]

• arr[1:4]

• arr[:3]

• arr[3:5]

How can you create a 2D NumPy array with the values [[1, 2], [3, 4]]?

• np.array([[1, 2], [3, 4]])

• np.create([[1, 2], [3, 4]])

• np.new_array([[1, 2], [3, 4]])

• np.make_array([[1, 2], [3, 4]])

What will be the output of the following code: arr = np.array([5, 6, 7, 8]); arr[-1]?

• 5

• 6

• 7

• 8

Which method is used to read a CSV file into a Pandas DataFrame?

• pd.read_csv()

• pd.load_csv()

• pd.import_csv()

• pd.open_csv()

What will be the output of the following code: df.head() if df is a DataFrame?

• Displays the first 5 rows of the DataFrame

• Displays the last 5 rows of the DataFrame

• Displays all rows of the DataFrame

• Displays the column names of the DataFrame

What will be the output of the following code: df.describe() if df is a DataFrame?

• Displays summary statistics of the DataFrame

• Displays the first row of the DataFrame

• Displays the last row of the DataFrame

• Displays the shape of the DataFrame

How do you reshape a NumPy array arr = np.array([[1, 2], [3, 4]]) to have shape (4, 1)?

• arr.reshape(4, 1)

• arr.resize(4, 1)

• arr.reshape(1, 4)

• arr.resize(1, 4)

Which function is used to display a plot in Matplotlib?

• plt.show()

• plt.display()

• plt.plot()

• plt.visualize()