Data Analysis: Recognizing and Addressing Problems
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Questions and Answers

What is the process of extracting information from raw data called?

  • Data processing
  • Data interpretation
  • Information extraction
  • Data analysis (correct)

Where do the data for data analysis come from?

  • Social media influencers
  • Television broadcasts
  • Fictional movies
  • Automatic detection systems and scientific instrumentation (correct)

What is the relationship between data and information?

  • Information can only come from human sources
  • Data is less important than information
  • Data is processed to extract information (correct)
  • Data and information are the same thing

Which process involves taking a certain dataset and deriving conclusions from it?

<p>Data analysis (B)</p> Signup and view all the answers

In the context of data analysis, what is the raw material that needs to be processed?

<p>Raw data (D)</p> Signup and view all the answers

How are huge amounts of data produced in today's world?

<p>From automatic detection systems and sensors (C)</p> Signup and view all the answers

What is the purpose of developing techniques of graphic representation in data analysis?

<p>To more easily understand the meaning of data (A)</p> Signup and view all the answers

What is the last phase of data analysis as described in the text?

<p>Deployment (A)</p> Signup and view all the answers

Which phase of data analysis involves testing the model using a set of data with known responses?

<p>Deployment (B)</p> Signup and view all the answers

What is the aim of comparing results with other models in data analysis?

<p>To understand if the newly created model is more efficient than existing ones (B)</p> Signup and view all the answers

What do various methods of data visualization aim to achieve?

<p>Represent data graphically for easier understanding (D)</p> Signup and view all the answers

What is the key role of graphical displays in data analysis?

<p>To help predict system responses accurately (B)</p> Signup and view all the answers

What must a good analyst be able to do regarding smaller problems?

<p>Recognize problems that arise during data analysis (C)</p> Signup and view all the answers

What is the key process to convert data into a set of rules for better understanding?

<p>Knowledge conversion (A)</p> Signup and view all the answers

How can data be categorized based on their values or observations?

<p>Continuously and discretely (B)</p> Signup and view all the answers

What distinguishes a nominal variable from an ordinal variable?

<p>Nominal variables have no intrinsic order while ordinal variables have a predetermined order (D)</p> Signup and view all the answers

In what way do discrete values differ from continuous values?

<p>Discrete values are distinct and separated while continuous values are interconnected (D)</p> Signup and view all the answers

What is the essential function of numerical data?

<p>They help in making informed decisions (D)</p> Signup and view all the answers

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