TEST D-DS-FN-23 RESULT - LATEST D-DS-FN-23 DUMPS SHEET

Test D-DS-FN-23 Result - Latest D-DS-FN-23 Dumps Sheet

Test D-DS-FN-23 Result - Latest D-DS-FN-23 Dumps Sheet

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EMC D-DS-FN-23 Exam Syllabus Topics:

TopicDetails
Topic 1
  • Big Data, Analytics, and the Data Scientist Role: This section of the exam measures the skills of a Data Science Enthusiast and covers the basic concepts of Big Data, including its defining characteristics and the business drivers behind its rise. It also introduces the role of the Data Scientist, highlighting the critical skills needed in the data science field.
Topic 2
  • Advanced Analytics - Theory, Application, and Interpretation of Results for Eight Methods: This section of the exam measures the skills of an Entry-Level Data Analyst and covers foundational knowledge in various advanced analytics methods. Topics include the theory, application, and interpretation of K-means clustering, association rules, linear and logistic regression, naïve Bayesian classifiers, decision trees, time series analysis, and text analytics.
Topic 3
  • Advanced Analytics for Big Data - Technology and Tools: This section of the exam measures the skills of a Data Science Enthusiast and addresses the technological challenges associated with Big Data. It introduces tools and technologies such as MapReduce, Hadoop, the Hadoop ecosystem, in-database analytics, SQL essentials, and advanced SQL techniques like window functions and MADlib.

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Latest D-DS-FN-23 Dumps Sheet | D-DS-FN-23 Latest Material

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EMC Dell Data Science Foundations Sample Questions (Q173-Q178):

NEW QUESTION # 173
In a Student's t-test, what is the meaning of the p-value?

  • A. it is the "power" of the Student's t-test
  • B. it is the area under the appropriate tails of the Student's distribution
  • C. it is the mean of the distribution for the alternate hypothesis
  • D. it is the mean of the distribution for the null hypothesis

Answer: B


NEW QUESTION # 174
Which chart type is intended to display correlations between sets of numeric data?

  • A. Histogram
  • B. Pie chart
  • C. Scatterplot
  • D. Line Chart

Answer: C


NEW QUESTION # 175
In linear regression, what indicates that an estimated coefficient is significantly different than zero?

  • A. R-squared near 1
  • B. A small p-value
  • C. R-squared near 0
  • D. The estimated coefficient is greater than 3

Answer: B


NEW QUESTION # 176
You have been assigned to do a study of the daily revenue effect of a pricing model of online transactions.
All the data currently available to you has been loaded into your analytics database; revenue data, pricing data, and online transaction data.
You find that all the data comes in different levels of granularity. The transaction data has timestamps (day, hour, minutes, seconds), pricing is stored at the daily level, and revenue data is only reported monthly.
What is your next step?

  • A. Disregard revenue as a driver in the pricing model, and create a daily model based on pricing and transactions only.
  • B. Report back to the business owner that the current data model does not support the business question.
  • C. Aggregate all data to the monthly level in order to create a monthly revenue model.
  • D. Interpolate a daily model for revenue from the monthly revenue data.

Answer: B


NEW QUESTION # 177
A logistic regression model is built to determine the probability of a credit card borrower defaulting on a credit loan. A threshold value of 0.3 is selected. Which statement can be used to predict a borrower will default?

  • A. If probability < 0.1, then predict the borrower will default
  • B. If probability > 0.3, then predict the borrower will default
  • C. If probability > 0.1, then predict the borrower will default
  • D. If probability < 0.3, then predict the borrower will default

Answer: B

Explanation:
In logistic regression, the threshold determines the cutoff for classifying an outcome. If the probability exceeds the threshold (0.3 in this case), the model predicts the positive class-here, that the borrower will default.


NEW QUESTION # 178
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