The air pressure of each tire in a group is normally distributed with a mean of 39.2 pounds per square inch (psi) and a standard deviation of 2.5. If a tire in this group has a z-score of - 1.8, find its air pressure.
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Home » Mathematics » The air pressure of each tire in a group is normally distributed with a mean of 39.2 pounds per square inch (psi) and a standard deviation of 2.5. If a tire in this group has a z-score of - 1.8, find its air pressure.