Based on the empirical rule, what percent of the observations will lie between plus or minus two standard deviations from the mean

Empirical rule for asymmetrical, chime formed recurrence conveyance, around 68% of the perceptions will exist in addition to and short one standard deviation of the mean; around 95% of the perceptions will exist in addition to and less two standard deviations of the mean; and for all intents and purposes every one of the (99.7%) will exist in addition to and less three standard deviations of the mean.