"variables" - key terms from Wikipedia

basic variables
between the variables
between two variables
boolean variables
bound variables
canonical variables
cataclysmic variables
change of variables
conjugate variables
convergence of random variables
dependent variables
environment variables
environmental variables
explanatory variables
free variables
global variables
hidden variables
if the variables
independent random variables
independent variables
instance variables
integration variables
latent variables
linguistic variables
local variables
natural variables
normal random variables
normally distributed random variables
number of variables
one or more type variables
output variables
physical variables
propositional variables
random variables
relationships between variables
scoped variables
separation of variables
sequence of random variables
session variables
shared variables
special variables
state variables
substituting real variables
these type variables	are known
these variables
two random variables
two variables
unobserved variables
variables
variables	need