Question

help|!

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Answer 1

if you add them up and divide by 2, their average is 20

if you subtract the smaller one from the larger one, then divide by 2. it is 5

Answer 2

there's only one set of numbers that does this

Answer 3

what is standard deviation?

Answer 4

a simple way to think of it is the difference in the actual data from the average

the average is 20, and that standard deviation is 5.... so what 2 numbers are 5 numbers away from 20?

Answer 5

15 and 25?

Answer 6

yes

Answer 7

Thanks @robz8 , that was a pretty easy explanation of standard deviation :)

Answer 8

standard deviation can be more complicated than that, but that's the gist of it

Answer 9

i think i just need that :)