How to calculate 2 standard deviation?

[Li]

Pls advise how to can I calculate 2 standard deviation in Excel? The StDev
function only gives 1 standard deviation.
Thanks,
Li

[JE McGimpsey]

One way:

=2 * STDEV(rng)

In article <[email protected]>,
"Li" <[email protected]> wrote:

> Pls advise how to can I calculate 2 standard deviation in Excel? The StDev
> function only gives 1 standard deviation.
> Thanks,
> Li