Dirty air: The federal government has enacted maximum allowable standards for air pollutants such as ozone. Let A be the number of days per year that the level of air pollution exceeds the standard in a certain city. The probability distribution of Y is given by x 0 1 2 3 4 P(x) 0.35 0.40 0.18 0.04 0.03(d) Find the probability that the standard is exceeded on more than two days. The probability that the standard is exceeded on more than two days is i '. ' X