Tammy Ma: E equals MC squared. Where that " m" is that differential in mass, we're going to multiply by " c, " the speed of light, a huge, huge number squared, and with that, get a tremendous amount of energy out.
And then if you square something close to 0-- remember, these are decimals, they're going to be less than 1, pretty close to 0-- it's going to become even smaller.
Now, this guy's standard deviation or the standard deviation of the sampling distribution of the sample mean, or the standard error of the mean, is going to the square root of that.