Final answer:
Career agents are full-time agents earning commissions on the policies they sell. The retention rate mentioned lacks specific supporting data. Residual commissions vary, with the provided range as a general estimate.
Step-by-step explanation:
You are correct that career agents earn commissions on the policies they sell, which can range between 40 to 90 percent of the first-year premium. They are indeed full-time agents who usually represent one insurer. To address the question regarding the retention rate, while there might be a high turnover in the industry, it is not accurate to claim that the retention rate is as specific as less than 15 percent after five years without concrete data to support this statement. Moreover, career agents typically earn a residual commission after the first year, but the exact percentage can vary and the range provided, 5 to 10 percent, is a general estimate.