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OMIS 324 Exam 1 questions well answered to pass
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OMIS 324 Exam 1 questions well answered to pass
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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.
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