Dirty air: The federal government has enacted maximum allowable standards for air pollutants such as ozone. Let \\ be the number of days per year that the OC level of air pollution exceeds the standard in a certain city. The probability distribution of X is given by x 2 3 4 P(x) 0.33 0.39 0.19 0.04 0.05 Send data to Excel Part 1 of 2 V (a) Compute the mean up . Round the answer to at least two decimal places. 1.09 Part: 1 / 2 Part 2 of 2 (b) Compute the standard deviation . Round the answer to at least three decimal places. X 5