It is quite similar to hair stroke cosmetic tattoo using the machine method, however the strokes are finer, and are not implanted as deeply in the skin. Therefore, cosmetic tattoo brows completed using microblade or microstroke technique are not as permanent.
The mean and standard deviation of a discrete population probability distribution are found by using these formulas: Mean Î¼ = Î£xP(x). Standard Deviation Ï = âÏ(x â Î¼)2P(x). To calculate these figures, we should construct a table which looks like the following: x P(x) xP(x) x - Î¼ (x â Î¼)2 (x â Î¼)2 P(x).
The Empirical rule for Normal Distribution is defined as 68% of values fall in 1 Standard Deviation of the mean, 95% of values are fall in 2 standard deviation of the mean and 99.73% of values are fall in 4 standard deviation of the mean. You can use this Standard Deviation Calculator to find Standard deviation.