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But when challenged to justify their argument, the contractors presented tables and charts, none of which brought the essential point to light: the causal relationship between temperature and O-ring damage at launches.
The sad fact is that had the data been ordered by temperature, it would have shown a direct correlation with O-ring damage.
The Challenger launch temperature was six standard deviations outside the range for which they had actual engineering data.
Doing it with a computer is harder, even with the unique attributes it has over the static page.
But clear thinking visually is not just good teaching, it can be a matter of life and death.
The Challenger disaster, for instance, could have been avoided if the visual representation of quantitative data had been clear.
The engineers knew there was a problem nearly 12 hours before the launch and voted to postpone it.
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