# Association Rule Mining MCQs Solution | TCS Fresco Play | TCS | MNC Answers

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basket1 = {'Power Bank', 'Screen Guard' , 'Travel Charger'}

basket3 = {'Screen Guard','Arm Band','Mobile Cover'}

basket4 = {'Power Bank','Screen Guard','Leather Pouch'}

1. What is the confidence for Screen Guard -> Mobile Cover ? 0.5

basket1 = {'Power Bank', 'Screen Guard' , 'Travel Charger'}

basket3 = {'Screen Guard','Arm Band','Mobile Cover'}

basket4 = {'Power Bank','Screen Guard','Leather Pouch'}

2. What is the support for Screen Guard ? 0.8

basket1 = {'Power Bank', 'Screen Guard' , 'Travel Charger'}

basket3 = {'Screen Guard','Arm Band','Mobile Cover'}

basket4 = {'Power Bank','Screen Guard','Leather Pouch'}

3. What is the support for Power Bank ? 0.6

basket1 = {'Power Bank', 'Screen Guard' , 'Travel Charger'}

basket3 = {'Screen Guard','Arm Band','Mobile Cover'}

basket4 = {'Power Bank','Screen Guard','Leather Pouch'}

4. What is the confidence for Power Bank -> Mobile Cover ? 0.33

5. In the Association Rule [ Screen Guard , Mobile Cover -> Power Bank ] , what is the consequent ?powerbank

6. Proportion of transactions with A and B / (Proportion of transactions with A) * (Proportion of transactions with B) . What is this formula ? lift(A-->B)

7. What are the pre-requisites for generating an Association Rule ? Support and Confidence

8. You are a Data Scientist in an e-commerce company . You are analyzing all the transactions that happened over the past 1 week in your site. You observe that of the five hundred transactions that happened , two hundred of them had a mobile phone in them. What is the support for mobile phones in the last 1 week ? 0.4

9. Which property states that an itemset can be considered frequent only if all the items in the set are frequent ? Upward Closure Property

10. Left hand side of an Association Rule is called ? Antecedent

11. What metric is first calculated for each item in the apriori algorithm ? support

12. The confidence of (A->B) is not always same as confidence of (B->A) . true

13. The FP Growth algorithm is not memory efficient. false

14. What is considered a challenge in implementing the Apriori Algorithm ? Sometimes too few item sets that satisfy the minimum support

15. Right hand side of an Association Rule is called ? Consequent

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