Lesson details

Key learning points

  1. In this lesson, we will explore how ever-improving advances in technology have made it more feasible to collect, store, and analyse much larger datasets than previously. We will then look at global data sets.


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2 Questions

Which of the following is the most accurate definition of data science?
Correct answer: Data science is extracting meaning from large data sets in order to provide insights to support decision-making
Data science is performing experiments and recording the data produced by those experiments
Data science is using computers to analyse data and to perform calculations on the data to produce information
Data science is writing code to make sure that any inaccuracies in data sets are spotted and removed (cleaned)
Which of the following best describes a data visualisation?
A collection of graphs that tell a story when put together
Correct answer: A visual representation that communicates relationships among the data
Making sure that data is accessible and that no data is hidden
Presenting related data so that a user can see individual items of data

3 Questions

In relation to data science, advances in technology has made it more feasible to do what?
Correct answer: Collect, store and analyse large volumes of data
Data to be analysed at a local level, it is still not possible to analyse data sets that collect global data
Store large volumes of data but data collection still needs to be done manually
What data might a video streaming service collect?
Correct answer: All of the above
Most popular actors
Most popular genres
Most popular tv shows
Users' favourite actors/directors based on their viewing habits
Users' favourite genre based on their viewing habits
Which two of the following might be reasons why a video streaming service collect this data?
Correct answer: To make decisions about what movies or TV shows they might commission
Correct answer: To make personalised recommendations to their customers about what movies or TV shows they might enjoy
To store and pass on to other companies without your permission