The answer your looking for is society A group of people with common practices, activities, and interests is called a society. hope this helps :)
date can help, along with point of view of the author
You need to give more information on the question.
Stocks obviously and I would think you have looked at the history of the stock you want to buy and seen it’s rates. It’s a risk because you can’t ever tell the future and the stock can come crashing down and won’t even give you a chance to collect profit off of it.