What does the world look like (wealth and health) over the past 200 years, but squeezed into 4 minutes. Hans Rosling looks at the change in a income and life expectancy for countries across the world over the past 200 years. What’s nice about this visualization is that it’s color coded to be able to show how different regions changed over time. We can also see how globalization has affected major countries like China, Japan, and India.
How a survey questions is asked may produced biased results, especially if the surveyor is trying to elicit a particular response. Besides the issues of responders trying to answer questions that they believe the researcher is asking, biased surveys can be used to show support both for and against the same topic. In this sketch comedy piece, Sir Appleby gives examples to his friend about various questions that could produce an opinion of supporting AND opposing conscription.
H/T to Chris Neill for the suggestion!
Sherlock works on a case involving missing women who recently arrived in London. It turns out that a taxi driver was abducting women and having them choose a poisonous pill to determine whether they lived or die. Eager for more excitement, the cabbie convinces Sherlock to play. Sherlock works through the process of trying to determine, by backward induction, which pill would be deadly.
He never finds out if he was right.
This clip was recommended by Christine Cai.