oe$$s Auto Inc. is a small Detroit$-$based company that manufactures standard $5-$gallon tanks $($or $18\mathrm{.}92$ liters$)$ for sport motorcycles. Despite highest quality standards, the pressing equipment still has a small amount of variability. Specifically, the volume of the gas tank is a normally distributed variable with a mean and a standard deviation of $18\mathrm{.}7$ liters and $0\mathrm{.}7$ liters respectively.

Being a small business, Joe$$s Auto Inc. is trying to minimize their legal liability. Joe$$s Auto Inc. learns that their chances of getting sued increase dramatically when their gas tanks hold more than $19\mathrm{.}4$ liters of gas. What percentage of tanks are likely to hold more than $19\mathrm{.}4$ liters of gas.