Fix logical error in scaling code

[unode]

When teaching this section the result was unexpected. I believe there is a bug in the logic of the code that went undetected so far.

Inverting the scaling factor "fixed the issue" and made the code easier to understand for learners.

[github-actions[bot]]

Thank you!

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Rendered Changes

:mag: Inspect the changes: https://github.com/swcarpentry/python-novice-inflammation/compare/md-outputs..md-outputs-PR-1096

The following changes were observed in the rendered markdown documents:

 10-defensive.md | 2 +-
 md5sum.txt      | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

What does this mean?

If you have source files that require output and figures to be generated (e.g. R Markdown), then it is important to make sure the generated figures and output are reproducible.

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:stopwatch: Updated at 2025-02-27 10:03:04 +0000

[tmorrell]

This is an intended error in the code to trigger the assertion, which is explained in https://github.com/swcarpentry/python-novice-inflammation/blob/dcb33beeb1763c70507073f6fc0fa5ef1049144a/episodes/10-defensive.md?plain=1#L220. Changing this would break the rest of the lesson.