Well, we know from the empirical rule that 99.7% of the probability is within three standard deviations. So this thing right here, you could look it up on a z-table as well, but three standard deviations is a nice clean number that doesn't hurt to remember. So we know that this area right here, I'm doing in this reddish orange, that area right over there is 99.7%. So what is left for these two magenta or pink areas? Well, if these are 99.7%, then both of these combined are going to be 0.3%. So both of these combined are 0.3%. Or if we wrote it as a decimal, it would be 0.003 of the total area under the curve.