Because they hid the people and made sure they were the only ones who got to keep tabs
The answer to this question, is this is something that YOU have to do YOURSELF. It claims that this is your story and that you need to have some fun with it. Basically asking for people to write it for you and then using their stories to answer your question is cheating. Some people on this website are asking for you to explain the answer and help them understand, not just hand the answers to them. I'm sorry if this comes off as rude, but someone could catch you cheating.
Answer:
A your work and the work of others
Answer:
The mode is the number that appears most frequently in a data set. A set of numbers may have one mode, more than one mode, or no mode at all. Other popular measures of central tendency include the mean, or the average (mean) of a set, and the median, the middle value in a set.
Hope this helps!