Based on the information provided about the box plots summarizing the cost of repairs at a car shop, the statement that best compares the distributions would be:
Cars without insurance were more likely to have a higher repair cost.
This is often the case in comparisons of such distributions, as cars without insurance typically face higher repair costs due to a lack of coverage. If you have the box plots available, you could likely confirm this statement by assessing the median and range of repair costs for each category.