ratio
quotient of two numbers or quantities of the same kind
likelihood ratios in diagnostic testing
likelihood ratios used for assessing the value of performing a diagnostic test
damping ratio
dimensionless measure describing how oscillations in a system decay after a disturbance
single-scattering albedo
ratio of scattering efficiency to total extinction efficiency
bit error rate
the ratio between the number of incorrect bits transmitted to the total number of bits
cross-ratio
invariant under projective transformations
energy returned on energy invested
ratio of acquired energy to the amount of energy spent to obtain this energy
lethality
how capable something is of causing death
Monotone likelihood ratio
Statistical property
edge density
ratio of a graph's size and its potential size
packing density
fraction of space filled in a packing
amount-of-substance fraction
proportion of a constituent to the total amount of all constituents in a mixture, expressed in mol/mol
body proportions
size ratio of body parts
bit rate
information transmission rate expressed in bits per second
marginal rate of substitution
the rate at which a consumer can give up some amount of one good in exchange for another good while maintaining the same level of utility
linear density
measure of a quantity of any characteristic value per length
employment-to-population ratio
proportion of the working-age population who are employed
sphericity
number between 0 and 1 which determines how closely a 3D shape resembles a sphere
wow and flutter
waver in a reproduced tone that is caused by irregularities in turntable or tape drive speed during recording, duplication, or reproduction
sampling fraction
ratio of sample size to population size
A/S ratio
proportion of the brain not directly connected with either receptor inputs or motor outputs
Cation-anion radius ratio
the ratio of the ionic radius of the cation to the ionic radius of the anion in a cation-anion compound
throw
distance of a movie projector from the screen
Payload fraction
ratio of the mass to be transported compared to the total mass of the vehicle, including fuel
stable isotope ratio
ratio of two stable isotopes
sky view factor
fraction of sky visible from the ground
isoperimetric ratio
ratio defined for any simple closed curve
positive predictive value
statistical ratio for binary classification tests
Home ownership rate
percentage of homes that are owned by their occupants