MD MPH means that the person is a Doctor of Medicine with a Master's degree in Public Health. MD MPH means that the person is a Doctor of Medicine with a Master's degree in Public Health.
Buk-M2E (NATO name: SA-17 Grizzly) is a medium-range advanced defence missile complex (ADMC) designed and manufactured by Almaz-Antey, primarily for the Russian Army.
xÌ is the mean and n is the sample size, as usual. m3 is called the third moment of the data set. m2 is the variance, the square of the standard deviation. The skewness can also be computed as g1 = the average value of z3, where z is the familiar z-score, z = (xâxÌ)/Ï.