The following joint frequency distribution table shows responses from a sample of 209 unionized employees on how their union president handled a recent labour action. Employees were categorized by age group and by their level of approval. Age Group Approve Disapprove Indifferent Total under 25 18 23 28 69 25 to 40 24 25 6 55 over 40 28 29 28 85 Total 70 77 62 209 Report answers accurate to at least 4 decimal places. 1. What is the probability that a randomly selected employee: a) approved or disapproved? b) was in the under 25 age group and disapproved? d) was in the 25 to 40 age group or was indifferent