**21CS644 (Data Science and Visualization) Solved Model Question Paper – 2 with Answers**

##### MODULE – 1

**1 a] What is data science? List and explain skill set required in a data science profile.**

**1 b] Explain Probability Distribution with example.**

**1 c] Describe the process of fitting a model to a dataset in detail.**

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**2 a] Explain with neat diagram the current Landscape of data science process.**

**2 b] Explain population and sample with example.**

**2 c] What is big data? Explain in detail 5 elements of bigdata**

##### MODULE – 2

**3 a] What is Machine Learning? Explain the linear regression algorithm.**

**3 b] Explain K-means algorithm with example.**

**3 c] Describe philosophy of EDA in detail.**

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**4 a] Explain the data science process with a neat diagram.**

**4 b] Explain KNN algorithm with example**

**4 c] Develop a R script for EDA.**

##### MODULE – 3

**5 a] Explain the fundamental differences between linear regression and logistic regression.**

**5 b] Explain selecting an algorithm in wrapper method.**

**5 c] Explain decision tree for chasing dragon problem.**

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**6 a] Briefly explain alternating Least squares methods.**

**6 b] Explain different selecting criterion in feature selection.**

**6 c] Explain dimensionality problem with SVD in detail.**

##### MODULE -4

**7 a] Define data visualization and explain its importance in data analysis.**

**7 b] Describe different types of plots in comparison plots.**

**7 c] Plot the following i) density plot ii) box plot iii) violin plot iv) bubble plot**

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**8 a] Describe the process of data wrangling and its significance in data visualization.**

**8 b] Explain the variants of bar chart with example.**

**8 c] Explain different types of plots in relation plots.**

##### MODULE – 5

**9 a] Develop a code for labels, titles in matplotlib.**

**9 b] Apply code for basic pie chart.**

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**10 a] Describe the process of creating a box plot in Matplotlib. with suitable programming example.**

**10 b] Apply code for scatter plot on animal statistics using matplotlib.**

**10 c] Develop a code for bar chart, pie chart in matplotlib.**