Recent content by seidjeep

  1. S

    Undergrad Standard deviation of a new sample

    Hello all, I am trying to figure out the following question with no luck: I have a box of resistors, mean 100 ohms and SD of 20 ohms. I form a subgroup of these resistors with mean of 100 ohms and SD of 5 ohms. Find the standard deviation of the remaining sample. The question does not...