Tampons, on the other hand, can block your flow, which can make your period last longer. 5. Many women arenât keen to have sex on their period, but, the truth of the matter is, it can help shorten the length of your period. Sex can effect flow because of orgasmic contractions.
The standard deviation of a random variable, statistical population, data set, or probability distribution is the square root of its variance. It is algebraically simpler, though in practice less robust, than the average absolute deviation.he variance is the mean of these values: and the population standard deviation is equal to the square root of the variance: This formula is valid only if the eight values with which we began form the complete population.
The standard deviation is the square root of the variance, which in this case is or 1.73. Comparison to mean absolute deviation. The mean absolute deviation is when the negative sign is ignored so that all deviations are converted to positive numbers, summed, and then averaged.