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Data Science Methodology Lecture 04 Quiz

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Data Science Methodology Lecture 04 Quiz

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Questions and Answers

What is the purpose of normalizing the attributes in a matrix plot?

To improve the aesthetic appearance of the plot
To ensure that one attribute does not dominate the plot (correct)
To make the data more visually appealing
To highlight the relationships between objects

What is the main advantage of using parallel coordinates to visualize high-dimensional data?

It provides a better representation of the relationships between objects
It makes it easier to identify clusters or groups within the data
It is more visually appealing than other data visualization techniques
It allows for the visualization of more attributes than a traditional scatter plot (correct)

What is the purpose of visualizing a similarity or distance matrix?

To identify the most important attributes in the dataset
To compare the performance of different data visualization techniques
To provide a more aesthetically pleasing representation of the data
To highlight the relationships between objects based on their attribute values (correct)

Why is the ordering of attributes important in a parallel coordinates plot?

It affects the ability to identify clusters or groups within the data (C) Signup and view all the answers

What is the purpose of the contour plot example of Sea Surface Temperature (SST) provided in the text?

To provide an example of how to visualize geographic data (A) Signup and view all the answers

What is the key difference between a matrix plot and a parallel coordinates plot?

Matrix plots use perpendicular axes, while parallel coordinates use parallel axes (C) Signup and view all the answers

How can the visualization of the Iris data correlation matrix be useful?

It can provide insights into the relationships between the different Iris species (B) Signup and view all the answers

What is the primary purpose of the matrix plot example for the Iris data?

To highlight the differences between the Iris species based on their attribute values (C) Signup and view all the answers

What is the main advantage of using parallel coordinates to visualize the Iris dataset?

It allows for the identification of clusters or groups within the data (C) Signup and view all the answers