Can you just give me some tips on how to handle SD type questions?
I've noticed that the question will often state that they have the same range and same average. I even encountered one wherein the average of one set was said to be higher than the other, but the two sets have the same range. Is it safe to assume that range and average have no bearing with regards to whether the SD of one set is higher than the other?
I am loath to say "no bearing", but for large sets, this is quite true. I'll write some example questions over the next few days