Answer Happy

The following joint frequency distribution table shows responses from a sample of 244 unionized employees on how their union president handled a recent labour action. Employees were categorized by age group and by their level of approval. Total Age Group Approve Disapprove Indifferent under 25 14 37 28 25 to 40 32 24 11 over 40 38 36 24 Total 84 97 63 79 67 98 244 Report answers accurate to at least 4 decimal places. 1. What is the probability that a randomly selected employee: a) did not approve? b) was in the under 25 age group and disapproved? c) was not in the under 25 age group and disapproved? d) was in the under 25 age group or was indifferent? e) was not in the under 25 age group or was indifferent? f) was not under 25 and did not approve? 2. Given that an employee was in the over 40 age group, what is the probability that the employee

a) approved? b) was not indifferent? 3. What is the probability of selecting an employee that was in the under 25 age group from a group of employees that a) disapproved? b) did not approve?