Gujarat Technological UniversitySummer 2023 examination

GTU 3150713 Python for Data Science Summer 2023 Question Paper & PDF

B.E. · Computer Engineering · Semester 5 · Subject code 3150713
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Total
70 marks
To pass
23 marks (33%)
Duration
2.5 Hours 2:30 PM – 5:00 PM
Questions
5 with internal choice
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10 of 25 questions on this paper were also asked in other years. Each is marked below with the years it appeared.See all 37 repeated 3150713 questions, most asked first

Q.1

14 Marks
(a)
3 marks

Write a single line code to get the value of "type" from the given dictionary in such a way that it does not produce any error or exception even if any key from the dictionary is misspelled. e.g. batters is misspelled as bateers. Still, your code must traverse the dictionary and fetch the value “Regular” of the key “type”. { "batters": { "batter": [ { "batter": [ { "batter": [{ "type": "Regular" }] }] }] } }

(b)
4 marksAsked in 3 of 7 papers
What is chi-square test? why it is necessary in data analysis?

Also asked in Winter 2025 Q5a, Summer 2024 Q5b OR

(c)
7 marks
Explain following string functions with suitable example.

len, count, title, lower, upper, find, rfine, replace

Q.2

14 Marks
(a)
3 marksAsked in 2 of 7 papers

List and explain the reasons which make python programming popular in Data Science.

Also asked in Winter 2025 Q1a

(b)
4 marks
Differentiate: Dictionary and List
(c)
7 marksAsked in 3 of 7 papers

What do you mean by Exploratory Data Analysis? List and explain the task which needs to be performed in EDA.

Also asked in Summer 2025 Q5c OR, Winter 2023 Q5c OR

(c)
7 marksAsked in 5 of 7 papers
Define Standardization. Explain Z-score standardization with suitable example.

Also asked in Summer 2026 Q3a OR, Winter 2025 Q5a OR, Summer 2025 Q5b OR, Winter 2024 Q3a OR

Q.3

14 Marks
(a)
3 marks
Depict steps to create a scatter plot with example.
(b)
4 marks
Establish relationship between AI, data science and big data.
(c)
7 marks
Provide explanations on the importance of Graphs in Data Science.
(a)
3 marks
Define correlation and explain its importance in Data Science.
(b)
4 marks
Provide duties performed by a Data Scientist with suitable example
(c)
7 marks
Elaborate Graphs along with its types.

Q.4

14 Marks
(a)
3 marks
Differentiate: Bar graph vs. Histogram
(b)
4 marks
Explain Training and Testing with suitable example.
(c)
7 marksAsked in 4 of 7 papers
Elaborate a bag of word concept in detail.

Also asked in Summer 2026 Q3c, Summer 2025 Q4c, Winter 2024 Q3c

(a)
3 marksAsked in 2 of 7 papers
Why data visualization is important in Data Science?

Also asked in Summer 2025 Q2a

(b)
4 marksAsked in 3 of 7 papers
Explain HTML parsing using Beautiful soup.

Also asked in Winter 2025 Q3c, Summer 2025 Q2c OR

(c)
7 marksAsked in 2 of 7 papers
Explain stemming in detail with relatable example.

Also asked in Winter 2024 Q4b

Q.5

14 Marks
(a)
3 marks
Provide your views on Data wrangling with suitable example.
(b)
4 marks
Define covariance and explain its importance with appropriate example.
(c)
7 marks
Elaborate XPath in detail with relatable example.
(a)
3 marksAsked in 5 of 7 papers
Explain Hashing Tricks and its importance with suitable example.

Also asked in Summer 2026 Q2c, Summer 2025 Q5c, Winter 2024 Q5c, Winter 2023 Q5c

(b)
4 marksAsked in 5 of 7 papers
Explain importance of Legends, Labels and Annotations in Graphs.

Also asked in Summer 2026 Q5c, Winter 2025 Q4a OR, Summer 2025 Q4a, Winter 2024 Q5a

(c)
7 marks
Describe sampling along with its types in detail with suitable example.

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About this paper

Official Gujarat Technological University (GTU) examination paper for Python for Data Science (Summer 2023, B.E. · Computer Engineering, Sem 5). Features complete 70-mark regular & remedial examination pattern, official marking distribution across all 5 questions, and direct 1-click official PDF download.

Transcribed for student exam preparation from Gujarat Technological University official examination archives. Questions, syllabus guidelines, and curriculum marking schemes remain the intellectual property of Gujarat Technological University.

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