BIA 484 Exam 1 Question and answers
100% correct 2026/2027
Business Intelligence (BI) - correct answer ✔An umbrella term that includes the application,
infratstructure, tools, and best practices that enable access to and analysis of information to improve
and optimize decisions and performance
What is Machine Learning - correct answer ✔The process of solving practical problems by 1. gathering
a dataset and 2. algorithmically building a statistical model based on the dataset
What is Machine Learning pt 2 - correct answer ✔The use and development of computer systems that
are able to learn and adapt without following explicit instructions, by using algorithms and statistical
models to analyze and draw infrences from patterns of data
What is Machine Learning pt 3 - correct answer ✔A branch of Artificla intellignece and computer
sicence which focuses on the use of data and algorithms to imitaate the way humans learn, gradually
improving its accuraacy
Why use Machine Learning Now? - correct answer ✔Big data- unprecedented amount of data
Competitive Landscape: rapidly changing and competitive market
Storage: AAvailability of processing and storage space
Data Mining - correct answer ✔process of discovering interesting and meaningful patterns in data
- data driven process not user driven process
How is Predictive Analytics different - correct answer ✔- BI is more user driven, PA is a subset
- Statistics - more model (theory) than data, taught not to data mine
- Data mining: more connotation about privacy
,Machine Learning Definition - correct answer ✔Emphasis on machine reecognizing patterns
- less exphasis on reporting and visualization
Statisticians: - correct answer ✔Rigor
- make sure everything follows every assumption
Machine Learning: - correct answer ✔Performance
- Get the best outcome variables regardless of the context
Data Analyst: - correct answer ✔Storytelling
- Explain something that makes sense
Two Types of Data Mining - correct answer ✔Descriptive
Predictive
* Both use Present data
Descriptive Data Mining - correct answer ✔Describes the data
- who were the best customers
- what did customers buy together?
Predictive Data Mining - correct answer ✔Makes predictions based on past data
- who will be the best customers
- what will customers buy together
,Why do we need Machine Learning - correct answer ✔Often state the obvious
- what is the best way to predict
- how well does it predict
Data explosion
- large increase of available data
Big Data- The 3 V's - correct answer ✔Volume
Variety
Velocity
Outcome: Value- what can you do with the data, how does it add value
Volume - correct answer ✔Can you find the information you are looking for
Variety - correct answer ✔Is a picture worth a thousand words in 70 languages?
Is your information balanced
Velocity - correct answer ✔Information gains momentum and crises and opportunities evolve in real
time. How is the outlook for today?
Who does what - correct answer ✔End User: Decision Making
Business Analyst: Data Presentation/ visualization
Data Analyst: Data mining (information discovery), Data Exploration (statistical analysis, querying,
reporting)
Database Administrator: Data Warehouses/Data Marts (OLAP),
Data sources (paper, files, data, OLTP)
, Needed skills of a Data Analyst - correct answer ✔- Statistical awareness
- Expertise with analytical tools
- Domain Knowledge
* know what results are useful
* know how to apply results
The Knowledge Discovery in Databases Process (KDD) - correct answer ✔Data --> Selection
Target Data --> Processing
Processed Data --> Transformation
Transformed Data --> Data Mining
Patterns --> Interpretation and Evaluation
Knowledge
Potential Application Areas - correct answer ✔Marketing
- Database marketing
- Tager marketing
- Customer relationship Management (CRM)
Finance
- Credit Scoring
- Fraud Detection
Managment
- Health inofrmatics
100% correct 2026/2027
Business Intelligence (BI) - correct answer ✔An umbrella term that includes the application,
infratstructure, tools, and best practices that enable access to and analysis of information to improve
and optimize decisions and performance
What is Machine Learning - correct answer ✔The process of solving practical problems by 1. gathering
a dataset and 2. algorithmically building a statistical model based on the dataset
What is Machine Learning pt 2 - correct answer ✔The use and development of computer systems that
are able to learn and adapt without following explicit instructions, by using algorithms and statistical
models to analyze and draw infrences from patterns of data
What is Machine Learning pt 3 - correct answer ✔A branch of Artificla intellignece and computer
sicence which focuses on the use of data and algorithms to imitaate the way humans learn, gradually
improving its accuraacy
Why use Machine Learning Now? - correct answer ✔Big data- unprecedented amount of data
Competitive Landscape: rapidly changing and competitive market
Storage: AAvailability of processing and storage space
Data Mining - correct answer ✔process of discovering interesting and meaningful patterns in data
- data driven process not user driven process
How is Predictive Analytics different - correct answer ✔- BI is more user driven, PA is a subset
- Statistics - more model (theory) than data, taught not to data mine
- Data mining: more connotation about privacy
,Machine Learning Definition - correct answer ✔Emphasis on machine reecognizing patterns
- less exphasis on reporting and visualization
Statisticians: - correct answer ✔Rigor
- make sure everything follows every assumption
Machine Learning: - correct answer ✔Performance
- Get the best outcome variables regardless of the context
Data Analyst: - correct answer ✔Storytelling
- Explain something that makes sense
Two Types of Data Mining - correct answer ✔Descriptive
Predictive
* Both use Present data
Descriptive Data Mining - correct answer ✔Describes the data
- who were the best customers
- what did customers buy together?
Predictive Data Mining - correct answer ✔Makes predictions based on past data
- who will be the best customers
- what will customers buy together
,Why do we need Machine Learning - correct answer ✔Often state the obvious
- what is the best way to predict
- how well does it predict
Data explosion
- large increase of available data
Big Data- The 3 V's - correct answer ✔Volume
Variety
Velocity
Outcome: Value- what can you do with the data, how does it add value
Volume - correct answer ✔Can you find the information you are looking for
Variety - correct answer ✔Is a picture worth a thousand words in 70 languages?
Is your information balanced
Velocity - correct answer ✔Information gains momentum and crises and opportunities evolve in real
time. How is the outlook for today?
Who does what - correct answer ✔End User: Decision Making
Business Analyst: Data Presentation/ visualization
Data Analyst: Data mining (information discovery), Data Exploration (statistical analysis, querying,
reporting)
Database Administrator: Data Warehouses/Data Marts (OLAP),
Data sources (paper, files, data, OLTP)
, Needed skills of a Data Analyst - correct answer ✔- Statistical awareness
- Expertise with analytical tools
- Domain Knowledge
* know what results are useful
* know how to apply results
The Knowledge Discovery in Databases Process (KDD) - correct answer ✔Data --> Selection
Target Data --> Processing
Processed Data --> Transformation
Transformed Data --> Data Mining
Patterns --> Interpretation and Evaluation
Knowledge
Potential Application Areas - correct answer ✔Marketing
- Database marketing
- Tager marketing
- Customer relationship Management (CRM)
Finance
- Credit Scoring
- Fraud Detection
Managment
- Health inofrmatics
