21CS644 (Data Science and Visualization) Solved Model Question Paper – 1 with Answers

21CS644 (Data Science and Visualization) Solved Model Question Paper – 1 with Answers

MODULE – 1

1 a] What is Data Science? Explain.

1 b] Explain Datafication.

OR

2 a] Explain statistical Inference

2 b] Explain the terms with example: 1) Population 2) Sample

MODULE – 2

3 a] Explain the Data science Process with a neat diagram.

3 b] Which Machine Learning algorithm to be used when you want to express the mathematical relationship between two variables? Explain.

OR

4 a] Explain Exploratory Data Analysis

4 b] Which Machine Learning algorithm to be used when you have bunch of objects that are already classified and based on which other similar objects that haven’t got classified to be automatically labelled? Explain.

MODULE – 3

5 a] Explain feature selection algorithms and selection criterion.

5 b] Define Feature Extraction. Explain different categories of information.

OR

6 a] Explain Random Forest Classifier.

6 b] Explain Principal Component Analysis.

MODULE – 4

7 a] What is the need of Data Visualization? Explain its importance.

7 b] Explain Data Wrangling with a neat diagram.

OR

8 a] Explain composition plots with diagram.

8 b] Explain i) Tools and libraries used for visualization. ii) Data Representation.

MODULE – 5

9 a] Explain Plotting Using pandas DataFrames, Displaying Figures and Saving Figures in Matplotlib.

9 b] Explain formatting of strings and Plotting in Matplotlib

OR

10 a] Explain the following with respect to Matplotlib. 1) Labels, Titles, Text, Annotations, Legends. 2) Subplots

10 b] Explain basic image operations of Matplotlib.

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