A study of 202 advertising firms revealed their income after taxes:

* Income after taxes: Under $1 million, number of firms: 104

*Income after taxes: $1 million to $20 million, number of firms: 55

*Income after taxes: $20 million or more, number of firms: 43

(a)What is the probability an advertising firm selected at random has under $1 million in income after taxes?(round to 2 decimal places)

(b) What is the probability an advertising firm at random has either an income between $1 million and $20 million, or an income of $20 million or more? (round to 2 decimal places)

(c) Which rule of probability could be applied? Choose from the following:

*Special Rule of Addition only

* Rules of Complements only

*EITHER