1. The odds of an American worker living within 20 minutes of work are 13 to 12. What is the probability that a worker selected at random lives within 20 minutes of work? Lives more than 20 minutes from work?
2. According to the Professional Golfers Association (PGA), the odds of a professional golfer scoring a hole-in-one in a single round of a PGA tournament are 1 to 3708. What is the probability of a professional golfer scoring a hole-in-one in a single round of a PGA tournament?
3. Twenty-six percent of all Americans are under 18 years old. What are the odds that a person selected at random is under 18? Eighteen years old or over?