A city’s annual rainfall totals are normally distributed, and the probability that the city gets more than 43.2 inches of rain in a year is given by P (z greater-than-or-equal-to 1.5) = 0.0668. If the standard deviation of the city’s yearly rainfall totals is 1.8 inches, what is the city’s mean annual rainfall?
40.5 inches
41.4 inches
45.0 inches
45.9 inches