Data Science in Patterns Identification MCQs Solution | TCS Fresco Play
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1. What is the confidence for Screen Guard -> Mobile Cover ?
0.5 -- Correct
2. What is the support for Power Bank ?
0.6 -- Correct
3. What is the support for Screen Guard ?
0.8 -- Correct
4. In the Association Rule [ Screen Guard , Mobile Cover -> Power Bank ] , what is the consequent ?
Power Bank -- Correct
5. What is the confidence for Power Bank -> Mobile Cover ?
.33 -- Correct
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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) -- Correct
7. What are the pre-requisites for generating an Association Rule ?
Support and Confidence -- Correct
8. What is considered a challenge in implementing the Apriori Algorithm ?
Sometimes too few item sets that satisfy the minimum support -- Correct
9. The FP Growth algorithm is not memory efficient.
False -- Correct
10. 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 -- Correct
11. Right hand side of an Association Rule is called ?
Consequent -- Correct
12. What metric is first calculated for each item in the apriori algorithm ?
Support -- Correct
13. Which property states that an itemset can be considered frequent only if all the items in the set are frequent ?
Upward Closure Property -- Correct
14. Left hand side of an Association Rule is called ?
Antecedent -- Correct
15. The confidence of (A->B) is not always same as confidence of (B->A) .
True -- Correct
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