someone please explain Standard Deviation to me.

Question

First of all, an example; mean age of the children in a test is 12.93, with a standard deviation of .76.

Now, maybe I am just over thinking this, but everything I Google gives me this big convoluted explanation of what standard deviation is without addressing the kiddy pool I’m standing in.

Edit: you guys have been fantastic! This has all helped tremendously, if I could hug you all I would.

In: Mathematics

Answer 1

Standard deviation = how volatile something is.

If the value doesn’t change much = low standard deviation and vice-versa.

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