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Comparing arrest rates by weather rating

Do police officers arrest drivers more often when the weather is bad? Let's find out!

  • First, you'll calculate the overall arrest rate.
  • Then, you'll calculate the arrest rate for each of the weather ratings you previously assigned.
  • Finally, you'll add violation type as a second factor in the analysis, to see if that accounts for any differences in the arrest rate.

Since you previously defined a logical order for the weather categories, good < bad < worse, they will be sorted that way in the results.

This exercise is part of the course

Analyzing Police Activity with pandas

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Hands-on interactive exercise

Have a go at this exercise by completing this sample code.

# Calculate the overall arrest rate
print(ri_weather.____)
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