Question

yzing driving statistics from segmented bar graphs to determine possible associations
road conditions vs. driving habits
according to the graph, which driving habit shows the least variation across
different road conditions?
road conditions vs. driving habits
■ eating/drinking ■ following all the rules
■ not using indicators ■ speeding ■ using phone
dry road
potholed road
snowy road
wet road
20 40 60 80 100
percentage
following all rules
using phone
speeding
eating/drinking

Explanation:

Step1: Analyze each driving habit's variation

For "eating/drinking", check the blue segments (eating/drinking) across dry, potholed, snowy, wet roads. The length of these segments seems relatively consistent (small variation in percentage across road conditions).
For "following all rules", the red segments vary more (e.g., snowy road has a longer red segment than wet road).
For "using phone", the light blue segments show more variation.
For "speeding", the green segments also show noticeable variation (e.g., potholed road vs snowy road).

Step2: Confirm the least variation

By comparing the consistency of the segments for each habit, "eating/drinking" has the least variation in its percentage across different road conditions.

Answer:

eating/drinking