I am a doctor interviewing for a new job. Interviewer asked me how many beds the hospital I currently work at has. I guessed it is around 200 beds. I was only thinking the beds in my area of the practice. The hospital in fact has 700 beds in total. I found that out just by reading about the hospital website. Should I contact them and tell them about my errors and apologize? Probably "I don't know would've been a better answer.