Final answer:
The most common age range for endometrial cancer is between 50 and 60 years.
Step-by-step explanation:
The most common age range for endometrial cancer is between 50 and 60 years. This is supported by various sources that mention menopause typically occurs around age 52, and endometrial cancer is more likely to develop after menopause. Additionally, Table 11.42 shows that the highest percentage of people diagnosed with endometrial cancer falls within the 51-60 age range, which further confirms this answer.