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WorksheetsData Science Quiz
Total questions: 10
Worksheet time: 5mins
Which of the following is the most accurate definition of data science?
Data science is extracting meaning from large data sets in order to provide insights to support decision-making.
Data science is using computers to analyze data and to perform calculations on the data to produce information.
Data science is performing experiments and recording the data produced by those experiments.
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 data visualization?
Presenting related data so that a user can see individual items of data.
Making sure that data is accessible and that no data is hidden.
A visual representation that communicates relationships among the data.
A collection of graphs that tell a story when put together.
Is the following a visualisation or an infographic?
Visualisation
Infographic
Chart
Diagram
What is meant by a correlation?
The relationship between two or more variables
When there is an upward trend in a graph
When there is a set of data that doesn’t lie in the normal or expected range
When data is placed in a graph
The visualization above plots life expectancy (y-axis) against time (x-axis). What type of correlation does this visualization show from 1949 onwards?
Positive
Negative
Neutral
No correlation is visible
The following graph shows the annual average temperatures recorded by a weather station over a period of 20 years. Identify the outlier in the data.
A. Point A
B. Point B
C. Point C
D. Point D
Which of the following is the correct order of the investigative cycle?
A. Problem, data, plan, analysis, conclusion
B. Conclusion, plan, problem, data, analysis
C. Plan, problem, analysis, data, conclusion
D. Problem, plan, data, analysis, conclusion
In which step of the cycle would you pose the question(s) that you will use data to help you answer?
A. Data
B. Analysis
C. Plan
In which step of the cycle would you cleanse the data?
Data
Analysis
Plan
Problem
In which step of the cycle would you work out where the data will come from or how you will collect it?
Data
Analysis
Plan
Problem
