What is a margin of error? This statistical tool can help you understand vaccine trials and political polling
Whether you are predicting the outcome of an election or studying how effective a new drug is, there will always be some uncertainty. A margin of error is how statisticians measure that uncertainty.
Jan. 6, 2021 • ~5 min
Nobody expected that allowing more communication would make computational problems more reliable.
Aug. 14, 2020 • ~8 min
Without a vaccine, the cost of reaching herd immunity during a pandemic is counted in lives lost, and it won't quickly stop the virus's spread.
June 16, 2020 • ~7 min
The equation 'COVID alert level = R (rate of infection) + number of infections' simply does not add up to a number between one and five.
May 15, 2020 • ~6 min
Testing everyone for COVID-19 isn't realistic in a country the size of the US, but there are ways to design testing systems that can catch most of the cases.
April 21, 2020 • ~7 min
Here's one way to test more people for coronavirus with fewer resources.
April 9, 2020 • ~6 min
The awesome power of exponential growth explained.
April 3, 2020 • ~7 min
Exponential growth, such as in a viral epidemic, starts deceptively slowly, then quickly balloons. A mathematician explains the importance of early action and the costs of delay.
April 2, 2020 • ~5 min
You don't have to believe the official figures to realise that the rate of spread of the virus in Japan has been slower than in other countries.
March 26, 2020 • ~5 min
NASA scientist Katherine Johnson was instrumental in getting people to the moon. Here are some of the lessons one mathematics professor believes she taught us all.
Feb. 26, 2020 • ~7 min