Are you a student struggling with the Data Mining NPTEL week 1 assignment? Look no further! In this article, we have compiled a set of hints and answers to help guide you through the assignment.
Make sure to give it a try on your own first, but use these hints as a helpful resource.
NPTEL DATA MINING WEEK 1 ANSWERS
Q1. Which of the following is usually the last step in the data mining process?
a. Visualization
b. Preprocessing
c. Modelling
d. Deployment
Answer: d. Deployment
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Q2. Sales database of items in a supermarket can be considered as an example of:
a) Record data
b) Ordered data
c) Graph data
d) None of the above
Answer: a) Record data
Q3. HTML links are an example of:
a) Record data
b) Ordered data
c) Graph data
d) None of the above
Answer: c) Graph data
Q4. Name of a place, can be considered an attribute of type?
a) Nominal
b) Ordinal
c) Interval
d) Ratio
Answer: a) Nominal
Q5. A store sells 10 items. Maximum possible number of candidate 3-itemsets is:
a) 120
b) 6
c) 15
d) 56
Answer: a) 120
Q6. If a record data matrix has reduced number of columns after a transformation, the transformation has performed:
a) Data Sampling
b) Dimensionality Reduction
c) Noise Cleaning
d) Discretization
Answer: b) Dimensionality Reduction
Answer Q7-Q10 based on the following table:

Q7. Support of rule {4,5} ‐> {1}
a) 1
b) 0.5
c) 0.25
d) 0
Answer: b) 0.5
Q8. Confidence of rule {4,5} -> {1} is:
a) 1
b) 0.5
c) 0.25
d) 0.75
Answer: a) 1
Q9. Support of {1} -> {2,5} is:
a) 2/3
b) 2/2
c) 1/4
d) 3/4
Answer: a) 2/3
Q10. Confidence of {1} -> {2,5}
a) 2/3
b) 1
c) 0
d) 0.5
Answer: b) 1
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Disclaimer: Please keep in mind that these answers are intended to serve as a reference for students. Our website does not guarantee the accuracy of the answers provided. We encourage all students to complete their assignments independently and use these answers as a supplement to their own understanding.
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