Recent content by JaredNardi

  1. J

    Does adding data to a data set affect the standard deviation?

    Hi, quite a basic question here but I can't find a solid answer. If I had a data set of 10 points, and I chose to add 4 new data points to it for example, can I use the same original standard deviation? Or must I re-calculate it? Is it possible to add the new data points with a specific number...