WorksheetsComp Sci Unit 5- Data
Total questions: 11
Worksheet time: 9mins
Which question(s) do graphs/ charts help you answer?
Is something more popular that something else?
Has something increased or decreased over time?
Are the frequencies of 2 events related?
All of the above
The main difference between correlation and causation is that ...
Correlation tells you that one thing caused another
Correlation shows similarities/ patterns, while causation shows cause & effect
Causation shows patters while correlation shows cause & effect
Causation and correlation mean the same thing
Which of the following best describes Metadata?
Facebook data
Provides information about data (data about data)
decreases effective use of data
Allows data to be unstructured and disorganized
Which of the following best describes the Data Analysis process?
Clean and filter data, collect data, visualize data, generate new info
Visualize data, clean and filter data, generate new information, collect data
Generate new information, clean data, collect data, visualize data
Collect data, clean and filter data, visualize and find patterns, generate new info
Which is not a reason why data must be cleaned ?
Data is incomplete
Multiple tables are combined into one
There is too much data
What is the goal of cleaning data?
Make data easier to understand by changing its meaning
Clean data without changing its meaning
Get rid of any data that you don't like
Make data more socially acceptable
Filtering data allows us to...
look at a subset of data
eliminate parts of data that don't agree with our opinion
Get rid of larger chunks of data
Prove causation of events
Which of these charts is better at looking relationships between 2 pieces of information?
Bar charts
Histograms
Venn diagrams
Scatter Plots
What does a crosstab chart do?
Looks at data on multiple tabs on your browser
Counts how many times combinations of values appear
Tells you if 2 things are related
Cleans and filters your data for you
Which kind of data is publicly available and shared by governments and organizations?
Open data
Citizen Science and Crowdsourcing
Big data
The practice of obtaining input or information from a large number of people is called...
Big data
Crosstab data
Crowdsourcing
Outsourcing
