Final answer:
The EDD (Estimated Due Date) is calculated by adding 284 days to the LMP. In this case, the EDD would be July 19, 2015.
Step-by-step explanation:
The EDD (Estimated Due Date) is calculated by adding 284 days (approximately 40.5 weeks) to the first day of the last menstrual period (LMP).
In this case, if the LMP is October 26, 2014, and we add 284 days, the EDD would be July 19, 2015.