the.com/poll

A snapshot of opinion that everyone treats as a weather forecast for the future.

means A survey of people's opinions or votes, used to estimate what a larger group thinks or will do.

from From Middle English 'polle,' meaning the top of the head — literally your skull. Early vote-counting worked by tallying heads: each person's 'poll' got counted, one head, one vote. That's also why 'poll tax' is a tax per head, and why you still 'head count' a crowd today. The word drifted from skulls to surveys because both involve counting individual people one by one.

margin of error
the part everyone ignores in headlines
sample size
1000 people deciding how 300 million feel
etymology
old word for the top of your head, literally
accuracy
best right before an election, worst right after
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