In data analytics, what does the term "data wrangling" refer to$?$

Question $1$Answer

a$.$

B$)$ Cleaning and organizing raw data

b$.$

C$)$ Creating data visualizations

c$.$

D$)$ Performing statistical analysis

d$.$

A$)$ Predicting future trends

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What is the primary purpose of Enterprise Resource Planning $($ERP$)$ software?

Question $2$Answer

a$.$

D$)$ Managing office supplies

b$.$

A$)$ Enhancing employee morale

c$.$

B$)$ Streamlining business processes

d$.$

C$)$ Designing marketing campaigns

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Which of the following is a key benefit of data standardization?

Question $3$Answer

a$.$

C$)$ Promoting data silos

b$.$

D$)$ Complicating data integration

c$.$

B$)$ Facilitating data interoperability

d$.$

A$)$ Introducing data errors

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Which symbol is used to indicate a process or action in a flowchart?

Question $4$Answer

a$.$

C$)$ Diamond

b$.$

B$)$ Rectangle

c$.$

D$)$ Parallelogram

d$.$

A$)$ Oval

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What is the primary purpose of a histogram in data presentation?

Question $5$Answer

a$.$

C$)$ Comparing different categories

b$.$

A$)$ Displaying relationships between two variables

c$.$

D$)$ Highlighting the central tendency of a dataset

d$.$

B$)$ Showing the distribution of a single variable

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Which characteristic is essential for ensuring data accuracy and reliability?

Question $6$Answer

a$.$

A$)$ Duplication

b$.$

B$)$ Timeliness

c$.$

C$)$ Ambiguity

d$.$

D$)$ Completeness

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In the context of data hierarchy, what is the role of the "File"?

Question $7$Answer

a$.$

C$)$ Storing raw data in a structured format

b$.$

A$)$ Generating reports from processed data

c$.$

B$)$ Sorting data for efficient retrieval

d$.$

D$)$ Visualizing data trends through charts

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What is the primary goal of exploratory data analysis $($EDA$)?$

Question $8$Answer

a$.$

C$)$ Implement machine learning algorithms

b$.$

A$)$ Predict future outcomes

c$.$

B$)$ Summarize and visualize data

d$.$

D$)$ Conduct hypothesis testing

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What is the primary goal of descriptive analytics?

Question $9$Answer

a$.$

c$)$ Summarize and interpret historical data

b$.$

b$)$ Optimize decision$-$making

c$.$

d$)$ Identify cause$-$and$-$effect relationships

d$.$

a$)$ Predict future outcomes

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What does a data flow diagram $($DFD$)$ primarily represent in a system?

Question $10$Answer

a$.$

A$)$ User interfaces

b$.$

B$)$ System architecture

c$.$

D$)$ Information flow

d$.$

C$)$ Data storage