3.2.3.Weekly challenge 2 - sj50179/Google-Data-Analytics-Professional-Certificate GitHub Wiki

Weekly challenge 2

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Question 1

Fill in the blank: A preference in favor of or against a person, group of people, or thing is called _____. It is an error in data analytics that can systematically skew results in a certain direction.

  • data collection
  • data bias
  • data interoperability
  • data anonymization

Correct. Data bias is a type of error that systematically skews results in a certain direction.

Question 2

Which of the following are types of data bias often encountered in data analytics? Select all that apply.

  • Interpretation bias
  • Observer bias
  • Educational bias
  • Confirmation bias

Correct. Observer bias, interpretation bias, and confirmation bias are types of bias often encountered in data analytics.

Question 3

Which of the following are qualities of unreliable data? Select all that apply.

  • Biased
  • Inaccurate
  • Incomplete
  • Vetted

Correct. Unreliable data is inaccurate, incomplete, and biased.

Question 4

In data ethics, consent gives an individual the right to know the answers to which of the following questions? Select all that apply.

  • Why am I being forced to share my data?
  • How long will my data be stored?
  • How will my data be used?
  • Why is my data being collected?

Correct. In data ethics, consent gives individuals the right to know why their data is being collected, how it will be used, and how long it will be stored.

Question 5

An individual who provides their data has the right to know and understand all of the data-processing activities and algorithms used on that data. This concept refers to which aspect of data ethics?

  • Currency
  • Ownership
  • Consent
  • Transaction transparency

Correct. This refers to transaction transparency, which is the idea that an individual who provides their data has the right to know and understand all of the data-processing activities and algorithms used on that data.

Question 6

An employer accesses an employee’s credit report without their consent. This is not a violation of the employee’s privacy because they work at the company.

  • True
  • False

Correct. An employer cannot access an employee’s credit report without their consent. This is a violation of the employee’s data privacy.

Question 7

Which of the following are commonly used methods for anonymizing data? Select all that apply.

  • Blanking
  • Deleting
  • Hashing
  • Masking

Correct. Blanking, hashing, and masking are common methods of anonymizing data.

Question 8

A key aspect of open data is free access to people’s personal information.

  • True
  • False

Correct. Open data does not involve granting free access to people’s personal information.