Exam (elaborations)
OMIS 324 Exam 1 questions well answered to pass
- Course
- Institution
OMIS 324 Exam 1 questions well answered to pass
[Show more]
Content preview
OMIS 324 Exam 1What are the 5 key characteristics of big data? - correct answer ✔✔Volume (Data Quantity), Velocity
(Data Speed), Variety (Data Types), Veracity (Trustworthiness of data), Value (Business Value of data)
What is Descriptive Analytics? - correct answer ✔✔the use of data to understand past and current
business performance and make informed decisions
What is Predictive Analytics? - correct answer ✔✔predict the future by examining historical data,
detecting patterns or relationships in these data, and then extrapolating these relationships
forward in time.
What is Prescriptive Analytics? - correct answer ✔✔identify the best alternatives to minimize or
maximize some objective
What is a data set? - correct answer ✔✔a collection of data
What is a database? - correct answer ✔✔a collection of related files containing records on people,
places, or things
What is a discrete metric? - correct answer ✔✔one that is derived from counting something
What is a continuous metric? - correct answer ✔✔are based on a continuous scale of measurement
(time, volume, weight, etc.)
What is categorical data? - correct answer ✔✔sorted into categories according to specified
characteristics (name, hair, color)
What is ordinal data? - correct answer ✔✔can be ordered or ranked according to some
relationship to one another (happy vs. unhappy, invoice number)
, What is interval data? - correct answer ✔✔ordinal but have constant differences between
observations and have arbitrary zero points (date, temperature)
What is ratio data? - correct answer ✔✔continuous and have a natural zero (weight, height)
What is the Pivot Table Checklist? - correct answer ✔✔remove blank rows and columns, no merged cells,
convert value fields to numbers, rename column headers
What is a dashboard? - correct answer ✔✔is a visual representation of a set of key business measures. It
is derived from the analogy of an automobile's control panel, which displays speed, gasoline level,
temperature, and so on.
What is unique about a Bubble chart? - correct answer ✔✔It can plot 3 variables in two dimensions
What do scatter charts illustrate? - correct answer ✔✔The relationship between two variables (pair)
What are dimensions in Tableau? - correct answer ✔✔Tableau assigns any fields that contain discrete
categorical information (e.g. where the values are strings or Boolean values) to the Dimensions area.
What are measures in Tableau? - correct answer ✔✔Tableau assigns any fields that contain quantitative,
numerical information (fields where the values are numbers) to the Measures area.
What is the who, what, how in data visualization? - correct answer ✔✔Who = to whom are you
communicating, what = what do you want your audience to know or do, and how = how can you use
your data to make a point?
What is affordance? - correct answer ✔✔Only highlight a fraction of the overall visual and At most 10%
of the visual design be highlighted
What is horizontal logic? - correct answer ✔✔you can read just the slide title of each slide throughout
your deck and, together, these snippets tell the overarching story you want to communicate.
The benefits of buying summaries with Stuvia:
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
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
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 BravelRadon. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $12.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
78310 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now