Unit 5: Data (APCSP '23-24 code.org)

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Images can contain a geographical location of where the picture was taken. This is stored in a special area of an image file called:

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Metadata

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The main information stored is referred to:

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data

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Which of the following is LEAST likely to be a problem when collecting data?
cleaning data, bias, incomplete data, having too much data

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having too much data

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A digital photo contains data about the red, green, and blue levels of each pixel. The file also contains the location and date each photo was taken. For which of the following would analyzing the metadata be better than analyzing the data?
- Determining if the photo is of people or nature
- Determining if the photo has a sky in the background
- Determining the number of people in the photo
- Determining the likelihood of this photo being taken at a public event

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Determining the likelihood of this photo being taken at a public event

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Which of the following would NOT use big data analysis? Healthcare companies, Public agencies, Retail companies, High school students doing homework

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High school students doing homework

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When a computer scientist uses the term "Big Data" what do they typically mean?

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There is enough data that traditional data processing applications are inadequate.

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A broad term for datasets so large or complex that traditional data processing applications are inadequate.

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Big data

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What is data that describes data?

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metadata

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Which of the following is NOT a reasonable conclusion you can come up with looking at this chart?
1. The sharp spike in dogs trends could be due to an increase in dog attack stories during that year
2. This chart proves that people love dogs more than they do cats
3. People search for dogs more than they do cats
4. It's possible there were more funny dog videos than cat videos during this period of time

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This chart proves that people love dogs more than they do cats

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Access and use of the Internet can differ by all of the following EXCEPT: Race, Education, Disability

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