Covid-19 vaccine: data-backed answers to pressing questions

Social media is bursting with discussions around the vaccine and unfortunately these discussions are often full of misinformation. Here, I'm reviewing the science behind the Pfizer vaccine and answering some basic but important questions. How does it protect you? And are we sure it works? Contrary to opinions I've seen recited in social media, the … Continue reading Covid-19 vaccine: data-backed answers to pressing questions

10 most influential data visualizations of all times

1. Geography by Ptolemy, AD 150 Claudius Ptolemy a Greek scientist, developed a treatise on cartography, containing detailed, innovative maps of the world based on the knowledge accumulated in the Roman Empire. It was highly influential on later works in cartography and the geographical knowledge in Europe and the Middle East as well as modern cartography. … Continue reading 10 most influential data visualizations of all times

Visualizing the elections: a deeper look at polls data

This is not an attempt to predict the outcome of the elections the world's eyes are on right now. I have been proven wrong before and abandoned this endeavor since. But I could not walk by publicly available data from a national poll and not mine it for more insights. The reports in the media … Continue reading Visualizing the elections: a deeper look at polls data

COVID-19: What do we really know about the virus? Part 1

In my last post, I talked about why COVID-19 science is so confusing and how we can cut through the noise. Now I'm going to put my money (or at least my virtual word count) where my mouth is and follow my own advice: look at the science behind the numbers in the media. We … Continue reading COVID-19: What do we really know about the virus? Part 1

COVID-19: Why is the science so confusing?

The fatality ratio is 5%, no it's 0.5%, no it's 0.01% but only in France. Masks will not protect you, but wear them because they will. Don't touch the surfaces because COVID-19 likes to rest on them, but it actually disappears almost as soon as it settles on the surface. Why is COVID-19 science so … Continue reading COVID-19: Why is the science so confusing?

Gendered: Girls’ life vs Boys’ life magazines

"Gendered" is a new series of posts which look at gender stereotypes with data. The goal is to expose the stereotypes and equip people with tools that will help recognize them in everyday life. Because they are everywhere. Really. A few months ago a friend posted a picture that was traversing the internets a couple … Continue reading Gendered: Girls’ life vs Boys’ life magazines

Statistics cheat sheet – Part 1

You've got data, you've got a hypothesis, you even gathered the courage to test it. But how do you choose the right test? Well, really you should have thought about this before you collected the data. Maybe you did and maybe you didn't. I won't judge (ok, maybe a little). Instead, I'll offer you a … Continue reading Statistics cheat sheet – Part 1

Why is Florida doing better than New York? The factors affecting the spread of COVID-19

Many people are wondering why New York is taking such a heavy hit while in states like Florida or California COVID-19 spreads much slower. After all California has as much tourism and immigration and in Florida the population is older and the quarantine was announced later. What is going on? What really affects the spread … Continue reading Why is Florida doing better than New York? The factors affecting the spread of COVID-19

Are we good at sheltering in place? And is it working? A deeper look at new data from Google

Recently, Google released Mobility reports based on Google maps data, that show changes in different types of activities such as shopping and park visits during shelter-in-place. This data provided an opportunity to understand how we are doing and if what we are doing is working. Below, I describe a combined analysis of two data sources: … Continue reading Are we good at sheltering in place? And is it working? A deeper look at new data from Google

The bright side: unintended consequences of the COVID-19 pandemic

When you think "pandemic", bright sides is not what comes to mind. But there is the proverbial silver lining even in these less than cheerful times. Having to stay at home "sheltering in place" en masse, causes some unintended positive consequences of significant proportions. Let's see what the data has to say. Fewer traffic accidents … Continue reading The bright side: unintended consequences of the COVID-19 pandemic