[Statistics for a 50-something Housewife] I answered "4!" on the train, but I was wrong. A review of standard error and the "R family"

Today, I'm heading out to accompany my husband to his hobby event.On the train, I did some mental quizzes that don't require ...

[Statistics for a 50-something Housewife] A mental quiz while waiting for 10 people at the hospital. I still confuse 'variance' and 'standard error'

Today I went to the hospital for a regular check-up for my chronic condition.After checking in, there were 10 people ahead of me waiting for their consultation.It didn't look like I would be called ...