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Dell EMC D-DS-FN-23 Exam - Topic 6 Question 2 Discussion

In association rules, given items X and Y, what does lift measure?
D) How many times more often X and Y occur together than expected if they were statistically independent, expressed as a ratio
A) Percentage of transactions that contain an itemset with X
B) Percentage of transactions with Xthat also contain Y
C) Difference in the probability ofX and Y appearing together compared with expectations as if they were statistically independent

Dell EMC D-DS-FN-23 Exam - Topic 6 Question 2 Discussion

Actual exam question for Dell EMC's D-DS-FN-23 exam
Question #: 2
Topic #: 6
[All D-DS-FN-23 Questions]

In association rules, given items X and Y, what does lift measure?

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Suggested Answer: D

by Susana at May 02, 2025, 10:18 AM

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Valene
7 months ago
Wait, isn't lift just another way to say correlation?
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Pearlene
7 months ago
Totally agree, it's all about that ratio!
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Lottie
7 months ago
Nope, lift is more specific than just correlation!
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Leslie
8 months ago
Really? I thought it was just about percentages.
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Teresita
8 months ago
Lift measures the ratio of how often X and Y occur together compared to if they were independent.
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Ilene
8 months ago
I vaguely remember that lift indicates how much more often X and Y occur together than expected, so I think option D sounds right, but I need to double-check my notes.
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Izetta
8 months ago
I feel like lift is about the relationship between X and Y, but I can't recall if it's the difference or the ratio. Maybe I should go with option C since it mentions probability.
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Lavelle
8 months ago
I remember practicing a similar question, and I think lift is related to the ratio of the joint probability to the individual probabilities. Could it be option D?
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Alisha
9 months ago
I think lift measures how much more likely X and Y are to occur together compared to if they were independent, but I'm not sure which option that is.
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Arthur
9 months ago
I'm a little confused by this question. Is lift related to the percentage of transactions that contain X, or the percentage of transactions with X that also have Y? I'll have to review my notes to make sure I understand the concept properly.
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Merri
9 months ago
Okay, I remember learning about lift in class. It's a measure of the difference between the actual probability of X and Y appearing together versus the expected probability if they were independent. I think option C is the right answer.
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Daron
9 months ago
Hmm, I'm a bit unsure about this one. I know lift has something to do with the probability of X and Y appearing together, but I can't quite remember the exact definition. I'll have to think this through carefully.
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Dorthy
9 months ago
I'm pretty sure lift measures how much more often X and Y occur together compared to if they were independent. I think it's option D.
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Cherilyn
1 year ago
Haha, I bet the answer is E) How many times the exam taker can lift a barbell with X and Y on it!
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Cecil
11 months ago
D) How many times more often X and Y occur together than expected if they were statistically independent, expressed as a ratio
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Britt
12 months ago
C) Difference in the probability of X and Y appearing together compared with expectations as if they were statistically independent
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Rodney
1 year ago
A) Percentage of transactions that contain an itemset with X
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Dominga
1 year ago
D seems like the best choice. It's the ratio of how often they occur together versus expected if independent.
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Lorita
1 year ago
Yes, D is the ratio of how often X and Y occur together compared to if they were independent.
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Audry
1 year ago
I agree, D is the correct choice for measuring lift.
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Bulah
1 year ago
I believe option C is also relevant, as it compares the probability of X and Y appearing together with expectations.
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Kanisha
1 year ago
I'm going with C. It's about the difference in probability compared to independence.
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Galen
1 year ago
I'm not sure, but I think it might be A. It's about the percentage of transactions containing X.
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Francesco
1 year ago
I agree with you, it's D. It's all about the ratio of occurrences compared to independence.
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Eladia
1 year ago
I think it's D. It measures how many times more often X and Y occur together than expected.
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Bonita
1 year ago
I agree with Ilda, that's option D. It's important in association rules to understand the relationship between items.
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Ilda
1 year ago
I think lift measures how many times more often X and Y occur together than expected if they were statistically independent.
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Deandrea
1 year ago
I think the correct answer is D. It measures how much more often X and Y occur together than expected if they were independent.
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Lawrence
1 year ago
Yes, that's right. It helps us understand the strength of the relationship between X and Y in association rules.
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Lonny
1 year ago
So, lift basically tells us how much more likely X and Y are to occur together than if they were independent.
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Na
1 year ago
I agree, the correct answer is D. It measures the ratio of how often X and Y occur together compared to if they were independent.
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