Aggregation The Musk sampling plan, thought through Kaiser examines Elon Musk's plan to find out what proportion of twitter users are spam.
Aggregation Know your data 30: everything's ok until it happens to you Kaiser muses about Elon Musk and his flight log.
Assumptions Great data journalism should have destroyed Djokovic's story but it didn't Kaiser describes some fun data sleuthing work as Germans looked into a tennis superstar's Covid-19 test results.
Excel Dr. Backlog jumps the pond Kaiser investigates the official reason for U.K. under-reporting of coronavirus cases.