Data Mining | Week 1

Data Mining Week 1 Answers

link: Data Mining Week 1 (

1. Which of the following is usually the last step in the data mining process?

a. Visualization

b. Preprocessing

c. Modelling

d. Deployment

2. 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

3. HTML links are an example of:

a) Record data

b) Ordered data

c) Graph data

d) None of the above

4. Name of a place, can be considered an attribute of type?

a) Nominal

b) Ordinal

c) Interval

d) Ratio

5. A store sells 10 items. Maximum possible number of candidate 3-itemsets is:

a) 120

b) 6

c) 15

d) 56

6. 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 Q7-Q10 based on the following table:

7. Support of rule {4,5} ‐> {1}

a) 1

b) 0.5

c) 0.25

d) 0

8. Confidence of rule {4,5} -> {1} is:

a) 1

b) 0.5

c) 0.25

d) 0.75

9. Support of {1} -> {2,5} is:

a) 2/3

b) 2/2

c) 1/4

d) 3/4

10. Confidence of {1} -> {2,5}

a) 2/3

b) 1

c) 0

d) 0.5

* The material and content uploaded on this website are for general information and reference purposes only and don’t copy the answers of this website to any other domain without any permission or else copyright abuse will be in action.

Please do it by your own first! Protection Status

close button
0 0 votes
Article Rating
Notify of

Inline Feedbacks
View all comments
close button
AdBlock Detected

Looks like you are using an ad-blocking browser extension. We request you to whitelist our website on the ad-blocking extension and refresh your browser to view the content.

Would love your thoughts, please comment.x