42% of a corporation's blue-collar employees were in favor of a modified health care plan, and 22% of its blue-collar employees favored a proposal to change the work schedule. 34% of those favoring the health care plan modication favored the work schedule change. a. What is the probability that a randomly selected bluecollar employee is in favor of the modified health care plan and the changed work schedule? b. What is the probability that a randomly chosen bluecollar employee is in favor of at least one of the two changes