Final answer:
Aileen and Jamie are the two individuals who are likely to lose at least two pounds at the end of the month by reducing calorie intake and/or increasing exercise.
Step-by-step explanation:
To determine which individuals are likely to lose at least two pounds at the end of the month, we need to consider the calorie intake and expenditure of each person. The two individuals who are likely to lose at least two pounds are Aileen and Jamie. Aileen reduces her calorie intake by 50 calories each day, which will result in a calorie deficit over time. Jamie sticks to his regular exercise routine but reduces his food intake by 150 calories each day. This combination of exercise and reduced calorie consumption will also lead to weight loss.