| margin of profit, profit margin, gross margin; abundance; abundance; albedo, reflective power; aspect ratio; cephalic index, breadth index, cranial index; efficiency; facial index; focal ratio, f number, stop number, speed; frequency, relative frequency; hematocrit, haematocrit, packed cell volume; intelligence quotient, IQ, I.Q.; load factor; loss ratio; Mach number; magnification; mechanical advantage; mileage, fuel consumption rate, gasoline mileage, gas mileage; odds, betting odds; order of magnitude, magnitude; output-to-input ratio; prevalence; price-to-earnings ratio, P/E ratio; productivity; quotient; refractive index, index of refraction; relative humidity; respiratory quotient; safety factor, factor of safety; signal-to-noise ratio, signal-to-noise, signal/noise ratio, signal/noise, S/N; stoichiometry; time constant; employee turnover, turnover rate, turnover; loading; eccentricity |