model answer: The first graph shows that there is a gradual decrease in study for career reasons with age. Nearly 80% of students under 26 years, study for their career. This percentage gradually declines by 10-20% every decade. Only 40% of 40-49yr olds and 18% of over 49yr olds studing for career reasons in late adulthood. Conversely, the first graph also shows that study stemming from interest increases with age. There are only 10% of under 26yr olds studing out of interest. The percentage increases slowly till the beginning of the fourth decade, and increases dramatically in late adulthood. Nearly same number of 40-49yr olds study for career and interest. However 70% of over 49yr olds study for interest in comparison to 18% studing for career reasons in that age group.