Hi Eric,

To find the second standard deviation, you can simply multiply the first standard deviation by 2. Here are the steps:

1. Calculate the first standard deviation using the formula
   Code:

   STDEV(a1:a20)

   .
2. Multiply the result by 2 to get the second standard deviation.

For example, if the first standard deviation is 5, then the second standard deviation would be 10 ().