MegaMaester

Statistics for Everyday Life · Lesson 6

Statistics in Everyday Decisions

beginner18 min · 7 cards
The big idea
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Eleven lessons, seven questions

Usable in a supermarket, a doctor’s appointment, or a meeting.

Try it

Seven Questions

The seven questions, applied to "violent crime rose 12% last year".

Both "crime is rising" and "crime is falling" can be defended from the same year, depending on the measure chosen.

Run a real headline through the checklist.
Where it lands

Everyday applications

Tap each.

Key term

Know when to stop

Should you analyse every statistic?
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No
Reversible, low-stakes decisions are best made quickly. Save the apparatus for claims that are consequential, hard to reverse, or shaped by someone with an incentive.
Nuance

Plain language

Think like a Maester

If you cannot restate a statistic without jargon, you have not understood it. Use frequencies, give the baseline, state the range.

Quick check

Why can a random sample of 1,000 represent millions?