In: Statistics and Probability
According to H.G. Wells, statistical thinking will one day be as necessary for efficient citizenship as the ability to read and write... and that day has arrived! Statistics are collected in most aspects of life. They capture vital information about our economic performance, the well-being of our population and the condition of our environment. They help form the basis of our democracy and provide us with the essential knowledge to assess the health and progress of our society. We rely on those statistics being visible, accessible and robust, and we rely on statistically literate people making the best use of the information to determine our future action, by presenting clear and convincing arguments and developing an 'evidence-based policy' to guide our decision making.
Statistics tell interesting stories and enable us to make sense of the world. They are indicators of change and allow meaningful comparisons to be made. In order to make sound judgments, it is essential that we are equipped with the very best knowledge for research, planning and decision-making purposes. While it may be the issues rather than the statistics that grab people's attention, it should be recognized that it is the statistics that inform the issues. Statistical literacy, then, is the ability to accurately understand, interpret and evaluate the data that inform these issues.
Why is it important to be statistically
literate?
The provision of accurate and authoritative statistical information
strengthens our society. It provides a basis for decisions to be
made on public policy, such as determining electoral boundaries and
where to locate schools and hospitals. It also allows businesses to
know their market, grow their business, and improve their marketing
strategies by targeting their activities appropriately.
In today's information-rich society, being statistically literate
will give you an edge. It will make you more attractive to future
employers and put you ahead of your competitors in the workplace.
Broadening your statistical knowledge will enable you to engage in
discussions and decision-making processes with authority, accuracy
and integrity.
Are you statistically literate?
If you are uncomfortable with using statistics, you are not alone.
Many people shy away from using statistics because of their
perceived complexity. People may:
You do not have to be an expert at maths to work with statistics.
Numeracy implies a basic competence in mathematics, a basic
understanding of numbers and figures. It is certainly a
prerequisite to being statistically literate, but statistical
literacy is not about being adept at formulating or understanding
the methodology behind the numbers. Rather, it is the ability to
interpret the numbers and communicate the information contained
therein effectively. Statistics simply help to tell a story. They
may be presented in different ways, such as tables, graphs, maps or
text, but they are not scary or boring if you know what they
mean.
Increased use of statistics does not automatically lead to an
increased understanding of statistics. In this information-rich
age, it is important for individuals to be independent, critical
thinkers, and statistical literacy is fundamental to achieving
this. Be skeptical. Consider what spin may have been put on the
data. What has really been said and what has been left out? Be
aware. Ignoring definitions or comparing statistics inappropriately
can result in misinterpretation of the data.
Statistical literacy criteria
To be statistically literate, there are four critical areas in
which you need to build skills:
1. Data awareness
2. The ability to understand statistical
concepts
3. The ability to analyze, interpret and evaluate
statistical information
4. The ability to communicate statistical information
and understandings