Streuspanne – Statistics and Its Curiosities

Blog and Podcast

Our blogging mathematicians and statisticians Sascha Feth and Jochen Fiedler present exciting news, fun facts and interesting background knowledge about statistics, mathematics and our tool Jurojin and their work behind it in the blog and podcast »Streuspanne – Statistics and Its Curiosities«. With the software Jurojin, operational strength tests can be planned and statistically evaluated.

About our Authors:

Sascha Feth
has been at our Fraunhofer Institute since 2005 and already dealt with mathematical statistics during his doctorate. For many years he has been a lecturer in our seminars, giving interested people an understanding of vehicle development statistics. The questions he answers there are one of the inspirations for the topics of this blog.

His Mission:
»I would like to give engineers an intuitive access to statistics without requiring basic mathematical knowledge. To achieve this, we look at various topics from unusual perspectives.«

Jochen Fiedler 
After studying mathematics with a focus on statistics, Jochen Fiedler joined our Fraunhofer Institute in 2015. Since then, he has been working on statistical methods for the agricultural sector and vehicle development and is also a lecturer in statistical seminars. Since Corona, he has also been blogging regularly – about all kinds of statistical issues that cross his path in private conversations.

His Mission:
»It is important to me not to lose sight of the big picture in the face of all the statistical numbers and measurements. That's why I want to explain how numbers come about and how their meaning could be interpreted.«

  • Podcast / 2023

    Episode 13: Statistically Tracking Down the Speed Limit

    Podcast Streuspanne – Statistics and Its Curiosities / July 10, 2023

    Folge 13: Tempolimit Streuspanne
    © iStockphoto / Fraunhofer ITWM

    This week, our Streuspanne podcast is all about the topic of the speed limit in Germany. Questions about what is currently probably the most important topic in the transport sector are answered: Could the climate targets be achieved with the change in mobility? How, for example, can CO2 savings through a speed limit be determined empirically, i.e. with the help of statistics? And how can good arguments be made in favor of a speed limit?

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  • Podcast / 2023

    Episode 12: How Are TV Ratings Determined?

    Podcast Spread - Statistics and Their Curiosities / April 20, 2023

    Folge 12: Einschaltquoten TV Quote Streuspanne
    © iStockphoto / Fraunhofer ITWM

    In this episode, the two blogging statisticians Dr. Sascha Feth and Dr. Jochen Fiedler talk with host Esther Packullat and guest participant Nathalie Steil about audience ratings, their significance, and above all: the basics of their mathematical development.

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  • Podcast / 2022

    Episode 8: Statistics Prove – Parapsychology Is (Not) Humbug. About Parapsychological Studies and Their Curious Discoveries

    Podcast Streuspanne – Statistics and Its Curiosities / July 05, 2022

    Streuspanne-Podcast: Parapsychologie ist (kein) Humbug
    © iStockphoto / Fraunhofer ITWM

    What actually makes us scientists? We mean »real sciences« and not pseudo-sciences like parapsychology. Presumably our scientific methods, which also include empirical studies! Unfortunately, we pat ourselves on the back with this demarcation too early. Because especially the parapsychology manages again and again to hold significant studies under the nose of us »real scientists« – there is everything, from telepathy up to smart-talking rats. In this way, claims which do not fit into our (scientific) world view are supported with data. How can this be? Are these studies perhaps simply faked? Unfortunately, no. Worse, the detailed answer to this, might make us doubt whether empirical science really creates knowledge.

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  • Blog Post / 2022

    What Helps Masks That Are Barely Worn?

    Streuspanne - Statistics and Its Curiosities / May 20, 2022

    Vorhersage, Risikobewertung und Reduzierung der Aerosolausbreitung für Innenräume
    © iStockphoto

    The Corona pandemic seems to be disappearing from our everyday lives and minds, and with it the masks from our faces. It feels like only half of the people still wear a mask in the supermarket. So today we ask ourselves the question: What good are masks that are hardly worn any more?

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  • Podcast / 2022

    Episode 7: Does Coincidence Really Exist?

    Podcast Streuspanne – Does Coincidence Really Exist? / March 21, 2022

    Streuspanne Zufall: Die Würfel sind gefallen
    © freepik / Fraunhofer ITWM

    Today's episode is all about the topic of chance. How is the term »coincidence« defined mathematically and what conclusions arise from this for everyday situations that we interpret as coincidence? What distinguishes the world of quantum mechanics from the macrophysical one in this respect? What role do cats play, and what chances of success would an omniscient demon have in a game of dice? As always, we answer these and a few more questions for you from the perspective of statistics.

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  • The Blogpost About the Podcast / 2022

    Anecdotes About Unreliable Tests: Are Multiple Antigen Tests in a Row More Reliable?

    Streuspanne – Statistics and Its Curiosities / March 03, 2022

    Corona Antigen-Schnelltest
    © freepik

    Last year, we addressed the topic of corona testing and its reliability in a series of blog posts. We received a question from a reader about this series: How much does the reliability of antigen tests increase if you test yourself more than once? Answers are provided by our blogging statisticians Sascha Feth and Jochen Fiedler.

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  • Podcast / 2022

    Episode 6: Curious Embarrassments in Statistics

    Podcast Streuspanne – Have You Ever Peed in a Lake? How Often Do Unvaccinated People Pee in the Lake? / February 03, 2022

    Badesee mit Keyvisual Streuspanne
    © Fraunhofer ITWM / MEV

    Today's episode is all about so-called »embarrassing characteristics«. Alcohol problems, doping in sports and the partially still sensitive topic of corona vaccination – our blogging statisticians tell us what role social desirability plays and how science deals with this problem. In addition to methods from science, Dr. Sascha Feth and Dr. Jochen Fiedler also take a closer look at the unreported number of Corona infections and the start of the pandemic in Italy and Germany. As always, Esther Packullat guides the podcast with questions.

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  • Blog Post / 2021

    How can Vaccine Effectiveness be calculated from Field Observations?

    Streuspanne – Statistik und ihre Kuriositäten / September 16, 2021

    COVID-19 Vaccine is in front of the stock market graph.
    © iStockphoto

    In our podcast, we have already talked about how vaccine effectiveness is calculated. We mainly referred to the registration studies. Now millions of people have been vaccinated and we have a lot of new data. Shouldn't we know better now how effective vaccination is?

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  • The Blogpost About the Last Podcast / 2021

    Do Statisticians Win More Often in Gambling?

    Streuspanne – Statistik und ihre Kuriositäten / August 02, 2021

    Gewinnen Statistiker:innen häufiger im Glücksspiel?
    © iStockphoto

    The probability calculus was invented in the 16th century in the first place only so that noblemen would do better at gambling. What is left of it today? Do statisticians have an advantage in Lotto, roulette and the like and win more often?

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  • How Comparable Are Incidences From Different Regions

    Streuspanne – Statistik und ihre Kuriositäten / June 07, 2021

    © Fraunhofer ITWM

    Having dealt with apparent contradictions between statistical measures in the last blog post, we now delve deeper into how local incidences are determined. There have been occasional criticisms in the German media that the incidences reported by the RKI are too low in some counties. We want to address the question: How large is this effect and how comparable are incidences in different regions?

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