Tom and jim are distant cousins who meet during their family meal. tom tells jim that he has 3 kids, and the product of their ages is 72. he also tells him the sum of their ages. jim says he still can’t correctly guess the ages of tom's kids. finally, tom says, "my youngest child's name is joy." jim can then correctly guess. what are the ages?

In a survey of 1015 adults, a polling agency asked, "when you retire, do you think you will have enough money to live comfortably or not. of the 1015 surveyed, 534 stated that they were worried about having enough money to live comfortably in retirement. construct a 90% confidence interval for the proportion of adults who are worried about having enough money to live comfortably in retirement.