率

cost effectiveness

labour rate; pay rate; wage rate; income rate

batting average

Computing

availability ratio

Physics

emissivity

sperm motility (ratio)

viscosity (coefficient); dynamic viscosity (coefficient)

ratio of the margin of loss of an electoral candidate in a single-constituent district (used to break ties when determining the representative of a proportionally represented district)

oblateness

proportion of forested land; proportion of land which is forested

stochastic model

case fatality rate

gross profit margin

population density

multiple tax rate

population coverage rate; service coverage ratio

electrical conductivity

distortion factor

ratio of wholesale price to retail price

random error

random sample

efficiency wages; performance-based remuneration

efficiency wages

loss factor