Lead with statistics, then interpret with narrative — not the reverse

Use the base rate as your anchor, then adjust for your specific situation — not the other way around.

Why it works

When people start with a vivid story or personal narrative and then consult statistics, the narrative dominates — the statistic is assimilated into an already-formed impression. When they start with the statistic and then ask how the specific situation differs, the statistic serves as a genuine anchor. The order of information matters because of anchoring and confirmation bias: whichever value is established first pulls subsequent processing toward it.

How to do it

1. For any probability estimate you are forming, find the relevant statistic before reading or forming a narrative.
2. Start from that number: "The base rate is X%. Now, what features of my situation move this up or down?"
3. Require yourself to state the base rate before sharing your personal estimate in any discussion.
4. When someone leads with an anecdote, ask for the base rate before responding to the story.

Evidence

Anchoring research (Tversky & Kahneman) shows that the first value encountered pulls subsequent estimates toward it. Starting with an accurate base rate anchors in the right direction; starting with a vivid narrative anchors on its implied (often distorted) frequency. (observational)

Even starting with an accurate base rate does not fully prevent narrative from influencing the final estimate; the effect is reduced, not eliminated.

Sources

• Tversky & Kahneman (1974), judgment under uncertainty: heuristics and biases, Science

Common mistake

Consulting statistics after narrative as a check rather than as the anchor, so the narrative already frames what the statistic will mean.