Ch 17 Quiz
docx
keyboard_arrow_up
School
University of Houston, Downtown *
*We aren’t endorsed by this school
Course
3304
Subject
Information Systems
Date
Dec 6, 2023
Type
docx
Pages
2
Uploaded by lizzyhernandez24
Ch. 17 Quiz
What is the first step in most complex data analytics techniques?
a.
Clustering
b.
Anomaly detection
c.
Classification
d.
Data summarization
The known fixed costs are compared to the estimated variable costs to predict what?
a.
Forecasting
b.
A confidence interval
c.
Break-even analysis
d.
A simulation
There are four widely used categories of data analytics. Which one tells us what has happened?
a.
Descriptive analytics
b.
Diagnostic analytics
c.
Predictive analytics
d.
Prescriptive analytics
There are four widely used categories of data analysis. Which two looks at the past and uses
historical data to learn more about what occurred and why it occurred?
a.
Predictive and Prescriptive
b.
Descriptive and Diagnostic
c.
Diagnostic and Predictive
d.
Descriptive and Prescriptive
There are four widely used categories of data analytics. Which one identifies what we should
do?
a.
Descriptive analytics
b.
Diagnostic analytics
c.
Predictive analytics
d.
Prescriptive analytics
Exploring a new data set and understanding its composition commonly involves the data
analytics technique data summarization, which involves simplifying data to quickly identify the
composition of categorical and quantitative values. We compress the data into smaller, easier-
to-understand outputs, called ________. To do this, we typically group a data set by a specific
field, or column.
a.
data summarization
b.
quantitative values
c.
data summaries
d.
field, or column
Maeve is a freshman outfielder on the softball team. Her softball coach tells her that the more
hours she practices hitting in the batting cage and on the field, the higher her batting average
will be during the season. What is the dependent variable?
a.
The hours of practice she does
b.
Her batting average
c.
The number of pitches she faces
d.
The spikes she wears
Five data analytics-related job titles were discussed in the text. Which of the following job titles
would best fit the following description: "Collects, manipulates, and analyzes data across a
business."
a.
Data engineer
b.
Data scientist
c.
Statistician
d.
Data analyst
Machine Learning (ML) uses algorithms and statistical models to train an AI system through
patterns and trends in data sets. ML programs systems to perform tasks without explicit
instructions and is a popular application of AI in data analytics. There are three machine
learning approaches. Monte Carlo simulation is an example of which type of ML?
a.
Supervised learning
b.
Unsupervised learning
c.
Refurbished learning
d.
Reinforcement learning
You are presented with a data set of 10 test scores: 99, 85, 84, 83, 83, 81, 80, 80, 79, and 66.
What is the average test score?
a.
81
b.
82
c.
99
d.
83
Your preview ends here
Eager to read complete document? Join bartleby learn and gain access to the full version
- Access to all documents
- Unlimited textbook solutions
- 24/7 expert homework help