<span>Irregular tire wear is a frustrating little gremlin that can steal your tires' performance and tread life if you let it. The problem is that irregular wear comes in so many different flavors. The causes of strange tire wear can range from air pressure to improper balance, from misalignment to bent wheels. Here's how to recognize the problem, how to tell where it's coming from and what to do about it.</span>
The average size of a pair of women's shoes sold at a shoe store is size 8, with a standard deviation of 1.5 sizes. If the sizes are normally distributed, what is the percentile rank of at least a size 9. Go to z-table.com
