MAB PA-15 pistol MAB PA-15 pistol The MAB PA-15 ("Pistolet Automatique 15", also known as the "P-15" or "P.15 Standard") was designed by the Manufacture d'armes de Bayonne. The model number, 15, refers to the magazine capacity. When introduced, this was the first pistol holding a greater number of rounds than the 13-round Browning Hi-Power. The PA-15 was introduced in 1966 along with a short-lived 8-round version with a single stack magazine, the P-8. The PA-15 was designed for commercial sale, primarily for export as French laws severely restricted the possession of "military-caliber" arms (which included the ubiquitous 9mm). The pistols were proofed
Standard deviation between "P" and "M" (which is the same as the orthogonal distance between "P" and the line "L") formula_56 is equal to the standard deviation of the vector ("x", "x", "x"), multiplied by the square root of the number of dimensions of the vector (3 in this case). An observation is rarely more than a few standard deviations away from the mean. Chebyshev's inequality ensures that, for all distributions for which the standard deviation is defined, the amount of data within a number of standard deviations of the mean is at least as much as given in the following table.