100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
D467 WGU Exploring Data Questions and Answers Graded A+ R181,61   Add to cart

Exam (elaborations)

D467 WGU Exploring Data Questions and Answers Graded A+

 11 views  0 purchase
  • Course
  • D467 WGU Exploring Data
  • Institution
  • D467 WGU Exploring Data

D467 WGU Exploring Data Questions and Answers Graded A+ What are some common techniques used in data exploration? Common techniques include summary statistics, data visualization, and identifying data distributions. How does data visualization aid in exploring data? Data visualization...

[Show more]

Preview 3 out of 29  pages

  • September 29, 2024
  • 29
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • D467 WGU Exploring Data
  • D467 WGU Exploring Data
avatar-seller
D467 WGU Exploring Data Questions
and Answers Graded A+
What are some common techniques used in data exploration?


✔✔ Common techniques include summary statistics, data visualization, and identifying data

distributions.




How does data visualization aid in exploring data?


✔✔ Data visualization helps to present complex information in a visual format, making it easier

to identify trends, outliers, and relationships.




What does it mean to have a representative sample in data analysis?


✔✔ A representative sample accurately reflects the characteristics of the larger population,

allowing for valid conclusions to be drawn.




Why is it important to identify outliers during data exploration?


✔✔ Identifying outliers is crucial because they can significantly affect the results of the analysis

and may indicate errors or unique phenomena.




1

,What is the difference between univariate and multivariate analysis?


✔✔ Univariate analysis focuses on a single variable, while multivariate analysis examines

multiple variables to understand relationships and interactions.




How can summary statistics help in understanding a dataset?


✔✔ Summary statistics provide insights into the central tendency, dispersion, and distribution of

the data, helping to describe its overall characteristics.




What role does data cleaning play in data exploration?


✔✔ Data cleaning ensures that the dataset is accurate and consistent, removing errors and

inconsistencies that could distort analysis results.




How do histograms help in visualizing data distribution?


✔✔ Histograms display the frequency of data points within specified ranges, allowing analysts

to observe the shape and spread of the distribution.




What is the purpose of a scatter plot in data analysis?


✔✔ A scatter plot shows the relationship between two quantitative variables, helping to identify

correlations or patterns in the data.

2

, What does it mean to normalize data, and why is it important?


✔✔ Normalizing data adjusts the scale of the values, allowing for more accurate comparisons

and analyses across different variables.




How can a correlation matrix be useful in data exploration?


✔✔ A correlation matrix reveals the strength and direction of relationships between multiple

variables, helping to identify potential predictors in analysis.




What is the significance of data transformation in preparing datasets?


✔✔ Data transformation modifies data into a suitable format, enhancing its quality and making it

easier to analyze effectively.




What are the key components of exploratory data analysis (EDA)?


✔✔ Key components of EDA include visualizing data, summarizing statistics, and identifying

patterns or anomalies within the dataset.




How do box plots contribute to understanding data variability?




3

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 EFT, credit card or Stuvia-credit 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 this summary from?

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

Will I be stuck with a subscription?

No, you only buy this summary for R181,61. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

84190 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy summaries for 14 years now

Start selling
R181,61
  • (0)
  Buy now