. Let the random variable P be the air pressure in a car tire, and assume that P is uniformly distributed between 29 and 34 pounds per square inch (psi). Recall that this means that the density curve for P is a flat, horizontal line at some constant level c above the interval from 29 psi to 34 psi. (a) Find the probability that the pressure of a tire will be above 31.7 psi.