A group of 548 high school students were asked whether they…

A group of 548 high school students were asked whether they smoke and whether their parents smoke.  The information is given in the following table.    Student smokes  Student doesn’t smoke  Row Totals Both parents smoke   9   30 One parent smokes   39   168 Neither parent smokes    43   259 Column Totals   If one of the 548 students is randomly selected, find the probability that: (Express your answers as a decimal rounded to four decimal places)   a.)   The student smokes, given both parents smoke.  [a] b.)   Neither parent smokes, given the student doesn’t smoke.  [b] c.)   The student doesn’t smoke.  [c] d.)   Neither parent smokes and the student doesn’t smoke.  [d] e.)   Both parents smoke or the student smokes.  [e]