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DEA-7TT2 Valid Exam Experience, DEA-7TT2 Reliable Exam Answers

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EMC DEA-7TT2 Certification Exam consists of 60 multiple-choice questions, which must be completed within 90 minutes. To pass the exam, candidates must score at least 60%. DEA-7TT2 exam is available in several languages, including English, Japanese, and Chinese. Upon passing the exam, individuals will receive the EMC Associate - Data Science and Big Data Analytics v2 certification, which is a valuable credential for demonstrating their expertise in this field.

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EMC Associate - Data Science and Big Data Analytics v2 Exam Sample Questions (Q39-Q44):

NEW QUESTION # 39
A business colleague who is new to Hadoop approaches you with a question. The colleague wants to know the best approach to access their dat a. The colleague has previously worked extensively with SQL and databases.
Which query interface should be recommended?
Response:

A. HBase
B. Hive
C. Pig
D. Howl

Answer: B

NEW QUESTION # 40
What is a good use case for logistic regression?
Response:

A. Predicting home sales prices in a city
B. Predicting the outcome of an election
C. Forecasting quarterly sales of a company
D. Predicting the income of a customer

Answer: B

NEW QUESTION # 41
You do a Student's t-test to compare the average test scores of sample groups from populations A and B. Group A averaged 10 points higher than group B. You find that this difference is significant, with a p-value of 0.03.
What does that mean?
Response:

A. There is a 97% chance that a sample group from population A will score 10 points higher that a sample group from population B.
B. There is a 3% chance that you have identified a difference between the populations when in reality there is none.
C. There is a 3% chance that a sample group from population A will score 10 points higher that a sample group from population B.
D. The difference in scores between a sample from population A and a sample from population B will tend to be within 3% of 10 points.

Answer: B

NEW QUESTION # 42
Refer to the exhibit.

You are building a decision tree. In this exhibit, four variables are listed with their respective values of info-gain. Based on this information, on which attribute would you expect the next split to be in the decision tree?
Response:

A. Income
B. Age
C. Credit Score
D. Gender

Answer: C

NEW QUESTION # 43
You need to run a hypothesis test across three normally distributed populations. Which technique should you use?
Response:

A. Z-test
B. Wilcoxon rank sum test
C. Welch,s t-test
D. ANOVA

Answer: D

NEW QUESTION # 44
......

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