FREE DOWNLOAD VALID DEA-7TT2 TEST SIMS & LEADING OFFER IN QUALIFICATION EXAMS & TRUSTWORTHY EXAM DEA-7TT2 GUIDE MATERIALS

Free Download Valid DEA-7TT2 Test Sims & Leading Offer in Qualification Exams & Trustworthy Exam DEA-7TT2 Guide Materials

Free Download Valid DEA-7TT2 Test Sims & Leading Offer in Qualification Exams & Trustworthy Exam DEA-7TT2 Guide Materials

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Tags: Valid DEA-7TT2 Test Sims, Exam DEA-7TT2 Guide Materials, Reliable DEA-7TT2 Test Objectives, DEA-7TT2 New Braindumps Questions, DEA-7TT2 Practice Braindumps

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EMC Associate - Data Science and Big Data Analytics v2 Exam Sample Questions (Q29-Q34):

NEW QUESTION # 29
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. Age
  • B. Credit Score
  • C. Gender
  • D. Income

Answer: B


NEW QUESTION # 30
What are considerations in a data science and Big Data analytics project?
Response:

  • A. Building data silos and bypassing data privacy rules
  • B. Analysis flexibility and decision making
  • C. Ignoring executive stakeholders and business users
  • D. Applying the latest technologies to demonstrate technical skills

Answer: B


NEW QUESTION # 31
Consider a database with the following four transactions:
Transaction 1: {cheese, bread, milk}
Transaction 2: {soda, bread, milk}
Transaction 3: {cheese, bread}
Transaction 4: {cheese, soda, juice}
Assuming a minimum support of 50%, which itemsets would be generated in the second step of the Apriori algorithm?
Response:

  • A. {cheese}, {bread}, {milk}, {soda}
  • B. {cheese, bread}, {cheese, milk}, {bread, milk}
  • C. {cheese, bread}, {bread, milk}
  • D. {cheese, bread}, {cheese, bread, milk}

Answer: C


NEW QUESTION # 32
The average purchase size from your online sales site is $17, 200. The customer experience team believes a certain adjustment of the website will increase sales.
A pilot study on a few hundred customers showed an increase in average purchase size of $1.47, with a significance level of p=0.1. The team runs a larger study, of a few thousand customers. The second study shows an increased average purchase size of $0.74, with a significance level of 0.03.
What is your assessment of this study?
Response:

  • A. The change in purchase size is small, but may aggregate up to a large increase in profits over the entire customer base.
  • B. The p-value of the second study shows a statistically significant change in purchase size. The new website is an improvement.
  • C. The change in purchase size is not practically important, and the good p-value of the second study is probably a result of the large study size.
  • D. The difference in the change in purchase size between the two studies is troubling; The team should run another, larger study.

Answer: C


NEW QUESTION # 33
You are provided with the following list. Which window function is missing?
cume_dist()
dense_rank()
rank()
percent_rank()
first_value()
last_value()
lag()
lead()
ntile()
Response:

  • A. row_preceding()
  • B. median()
  • C. row_number()
  • D. cumulative_sum()

Answer: C


NEW QUESTION # 34
......

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