Use the data in the table below, which shows the employment status of individuals in a particular town by age group.
Full-time Part-time Unemployed
0–17 24 164 371
18–25 191 203 148
26–34 348 74 27
35–49 581 179 110
50+ 443 162 173
A person from the town is randomly selected; what is the probability that the individual is employed full-time, given that he or she is between 18 and 49 years of age?