Machine Learning QUIZ 1

What is Matplotlib primarily used for in the context of machine learning?

• Data preprocessing

• Data visualization

• Model training

• Hyperparameter tuning

What is the purpose of the `imshow` function in Matplotlib?

• To display an image

• To plot a scatter plot

• To create a 3D plot

• To show a bar chart

The matplotlib function that is used to plot points in the graph is:

• Points

• Dot

• Scatter

• Plot

How do you import the Matplotlib library in Python?

• import matplotlib

• import plt

• import matplotlib.pyplot as plt

• import matplotlib as plt

What is the primary function used to add labels to the x and y axes in a Matplotlib plot?

• label_axes()

• plt.x_label(), plt.y_label()

• set_labels()

• plt.xlabel(), plt.ylabel()

What is the purpose of the legend() function in Matplotlib?

• To describe the elements of a graph

• To label the x and y axes

• To change the plot's color

• To add a title to the plot

What does the subplots() function in Matplotlib return?

• A single plot

• Multiple subplots

• A legend for the plot

• A color map

What is the primary purpose of the Pandas library in machine learning?

• Data visualization

• Statistical analysis

• Data preprocessing and manipulation

• Model evaluation

In Pandas, what is a DataFrame?

• A 2D labeled data structure with columns of potentially different types

• A 3D labeled data structure with uniform column types

• A 1D labeled data structure with homogeneous data

• A 4D labeled data structure for time series data

What is the purpose of the training, validation, and test datasets in machine learning?

• To confuse the model during training

• To measure the model's performance on unseen data

• To increase the model's complexity

• To reduce the training time