yr 9.2.6 - Data Science: Make a Change

Which of the following is the most accurate definition of data science?

• Data science is using computers to analyse data and to perform calculations on the data to produce information.

• 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 writing code to make sure that any inaccuracies in data sets are spotted and removed (cleaned).

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.

Which of the following is the correct order of the investigative cycle?

• Problem, data, plan, analysis, conclusion.

• Conclusion, plan, problem, data, analysis.

• Plan, problem, analysis, data, conclusion.

• 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?

• Data

• Analysis

• Plan

• Problem

In which step of the cycle would you cleanse the data?

• Data

• Analysis

• Plan

• Problem