Medialab Prado


Data journalism. Eighth Learning Session: Workshop on Statistics: "An Afternoon With Numbers"

14.12.2012 17:00h - 20:00h

Place: Medialab-Prado en Intermediae Matadero Madrid (Paseo de la Chopera, 14 Madrid)

Traditionally journalism and numbers have not had a good relation. How many times have has someone in a newsroom said "I'm from the arts"? However, the adequate use of statistics is increasingly necessary for this profession. It could be due to the rise of the risk premium or due to an electoral survey/poll that has to be transmitted in an understandable manner, or a spreadsheet that contains exclusive information. In this new session (number eight), the data journalism work group would like to do their bit to fight against this fear of numbers. Do you think that statistics is boring?


Understanding Surveys in Three Steps: Samples, Questions, Margins of Error, by Josu Mezo

"There are three fundamental elements that have to be taken into consideration when interpreting the results of a survey. The first and elemental one is the type of sample used, which will tell us if the survey has representative value or not. If it does not, it might be recommendable to not use it at all. The second step concerns the careful reading of the questions and answers used: the, intentional or unintentional, choice of words can greatly influence the results of the survey. The third element is the margin of error: the little differences might not be significant, that is, we do not know if they correspond with differences in the population". Josu Mezo

A Statistician Writes for a Newspaper, by Juan José Gibaja

The talk shows some proposals to improve, from a statistical point of view, the contents of the news, articles and reports gathered in the press.
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