Introduction to Data Science 2025 — MAKAUT · PCC-DS-301 · Mid Sem PYQ with solutions

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Maulana Abul Kalam Azad University of Technology

Solutions

32 answers across 3 groups

Try each question first, then open it to check your answer.

Group AVery Short Answer Type Question · answer any 10 · 1 mark each

  1. I

    State True or False: Probability Density Function is the smooth form of Histogram

    Free sample

    Answer: True

    Explanation

    A probability density function (PDF) represents a continuous distribution and can be viewed as the smoothed, idealized version of a relative frequency histogram as the sample size approaches infinity and bin width approaches zero.

  2. II

    _______ is the correct extension of the Python file?

  3. III

    Define Bionomial Distribution.

  4. IV

    Machine learning is a subset of ______

  5. V

    What is hierarchical clustering?

  6. VI

    Who developed the Python Programming Language?

  7. VII

    Is Median equivalent to Mean? Justify

  8. VIII

    What is AUC?

  9. IX

    Differentiate Discrete and Continuous variable.

  10. X

    What is the maximum length of a Python identifier?

  11. XI

    Which of the following machine learning algorithm is based upon the idea of bagging?

  12. XII

    What is Hyper parameter Tuning?

Group BShort Answer Type Question · answer any 3 · 5 marks each

  1. 2

    What are the data types in Python? Explain mutable and immutable objects in Python.

  2. 3

    Define Probability density function and Cumulative Distribution Function.

  3. 4

    Is the role of Training, Validation and Testing of data required in Machine Learning? Justify your answer.

  4. 5

    What is bootstrapping in Bagging and Random Forest?

  5. 6

    Consider the score of 5 students in English and Computer that are mentioned in the table below:

    StudentsEnglishComputer
    A3524
    B2035
    C4939
    D4448
    E3045

    Compute the Spearman's Rank correlation coefficient and the relationship between two ranks.

    Show answer to question 6

Group CLong Answer Type Question · answer any 3 · 15 marks each

  1. 7(a)

    What is Ensemble learning?

    2 marks
  2. 7(b)

    What is Kernel Function in SVM?

    5 marks
  3. 7(c)

    What are the hard margin and soft margin in SVM?

    4 marks
  4. 7(d)

    What effects the decision boundary in SVM?

    4 marks
  5. 8(a)

    What are the features of Network Analysis?

    5 marks
  6. 8(b)

    What are the purposes of Network Analysis?

    5 marks
  7. 8(c)

    Describe the types of social networks analysis.

    5 marks
  8. 9(a)

    What is Confusion Matrix? Explain in details.

    5 marks
  9. 9(b)

    Write about the performance of Confusion Matrix with an suitable example.

    5 marks
  10. 9(c)

    What are the assumptions that must hold for a Regression Mode? Explain in details.

    5 marks
  11. 10(a)

    Explain the following list methods with an example.: i) append() ii) extend() iii) insert() iv) index() v) sort()

    10 marks
  12. 10(b)

    Explain control flow statements in python with suitable example.

    5 marks
  13. 11(a)

    Find the means of X and Y variables and the coefficient of correlation between them from the following two regression equations: 2Y - X - 50 = 0 and 3Y - 2X - 10 = 0.

    6 marks
  14. 11(b)

    What are the assumptions that must hold for a regression model?

    4 marks
  15. 11(c)

    What do you understand by Logistic regression? Explain in details.

    5 marks

About this paper

The MAKAUT Introduction to Data Science (PCC-DS-301) 2025 Mid Sem previous year question paper, set in semester 3. Download the verified PDF or read it online, then check your answers against the worked solutions above.

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What is the subject code for Introduction to Data Science?

PCC-DS-301 is the MAKAUT subject code for Introduction to Data Science.

Which exam is this Introduction to Data Science question paper from?

The MAKAUT 2025 Mid Sem exam, semester 3. A student shared it, and it was checked before publishing.

Which branches is this Introduction to Data Science paper for?

B.Tech Computer Science and Engineering (Data Science).

Where can I find more PCC-DS-301 question papers?

On the Introduction to Data Science subject page, which collects every year's papers along with notes and the syllabus.

Are there solutions for this paper?

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