100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Previously searched by you
Previously searched by you
logo
D206 DTAN 5201 Data Cleaning FA (Qns & Ans) 2025 WGU. £9.93
Add to cart
Quickly navigate to
Preview
  2.  
  3. Western Governors University
  4.  
  5. Information Technology

Exam (elaborations)

D206 DTAN 5201 Data Cleaning FA (Qns & Ans) 2025 WGU.
 0 purchase
  • Module
  • Information Technology
  • Institution
  • Western Governors University

D206 DTAN 5201 Data Cleaning FD206 DTAN 5201 Data Cleaning FA (Qns & Ans) 2025 WGU.D206 DTAN 5201 Data Cleaning FA (Qns & Ans) 2025 WGU.A (Qns & Ans) 2025 WGU.

Preview 3 out of 17  pages

Document information

  • December 16, 2024
  • 17
  • 2024/2025
  • Exam (elaborations)
  • Unknown

Subjects

  • d206 dtan 5201 data cleaning fa qns ans 2025 w

Written for

  • Western Governors University
  • Information Technology
All documents for this subject (125)

Seller

avatar-seller
Bankart

Reviews received

Content preview

D206 DTAN 5201

Data Cleaning

Final Assessment (Qns & Ans)

2025
General Instructions

1. Read All Questions Carefully: Make sure you understand each question.
2. Time Management: You have a specific amount of time to complete the exam.
Keep an eye on the clock and pace yourself.
3. Allowed Materials: Only use materials that are explicitly allowed. Unauthorized
materials can lead to disqualification.
4. ANS Format: Follow the required format for your ANS. For example, multiple-
choice questions might need you to select the best ANS, while essay questions
require detailed responses.
5. Academic Integrity: Adhere to the university's honor code. Any form of cheating or
plagiarism is strictly prohibited.
6. Technical Requirements: Ensure your computer and internet connection are
stable. For online exams, you might need a webcam and microphone for proctoring
purposes.
7. Submission: Submit your ANS before the time expires. Late submissions might
not be accepted.




©2024/2025

,1. Which of the following is NOT a common technique for
handling missing data?
a) Mean Imputation
b) K-Nearest Neighbors Imputation
c) Duplicate Removal
d) Last Observation Carried Forward
ANS : c) Duplicate Removal
Rationale : Duplicate removal is a technique used for
identifying and eliminating duplicate records, not specifically for
handling missing data.


2. What is the primary purpose of data normalization?
a) To summarize data
b) To scale features to a common range
c) To convert categorical data to numerical
d) To fill in missing values
ANS : b) To scale features to a common range
Rationale : Normalization scales the data to ensure that each
feature contributes equally to the distance computations that
might affect the model performance.
©2024/2025

, 3. In the context of data cleaning, what does the term "outlier"
refer to?
a) Data that is missing
b) Data that is duplicated
c) Values that differ significantly from other observations
d) Any erroneous entry
ANS : c) Values that differ significantly from other
observations
Rationale : Outliers are extreme values that can skew the results
and are often investigated and treated during data cleaning.


4. Which method is commonly used to detect outliers?
a) Standard deviation method
b) Direct observation
c) K-means clustering
d) Linear regression
ANS : a) Standard deviation method
Rationale : The standard deviation method helps in identifying
data points that lie beyond a certain threshold from the mean,
indicating potential outliers.


©2024/2025

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through credit card for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller Bankart. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for £9.93. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

70713 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy revision notes and other study material for 15 years now

Start selling

Recently viewed by you

Exam (elaborations) ·

(0)

PSCI 2223 Final Test Questions with Complete Answers

Exam (elaborations) ·

(0)

NSG 321Post-Simulation Quiz. | 2020/2021 LATEST VERSION.

Exam (elaborations) ·

(0)

ATI 3.0 Injectable Medications Exam Guide Test 2024.

Summary ·

(0)

Alevel History: Economic developments 1924-28 Mindmap

Exam (elaborations) ·

(0)

SABALAUSKI AIR ASSAULT SCHOOL PHASE 1 TEST EXAM 2024

Exam (elaborations) ·

(0)

PHR Certification Exam With 100% Correct Answers 2023

Lecture notes ·

(0)

Class notes on Introduction to Communication studies

Presentation ·

(0)

COMPLETE INF3708 Summary Software Project Management

Essay ·

(0)

Paper over liquidatie voor Theoretische Criminologie

£9.93
  • (0)
Add to cart
Added