Continuous or discrete variable

In mathematics and statistics, a quantitative variable may be continuous or discrete if they are typically obtained by measuring or counting, respectively. If it can take on two particular real values such that it can also take on all real values between them (even values that are arbitrarily close together), the variable is continuous in that interval. If it can take on a value such that there is a non-infinitesimal gap on each side of it containing no values that the variable can take on, then it is discrete around that value. In some contexts a variable can be discrete in some ranges of the number line and continuous in others.

Comment
enIn mathematics and statistics, a quantitative variable may be continuous or discrete if they are typically obtained by measuring or counting, respectively. If it can take on two particular real values such that it can also take on all real values between them (even values that are arbitrarily close together), the variable is continuous in that interval. If it can take on a value such that there is a non-infinitesimal gap on each side of it containing no values that the variable can take on, then it is discrete around that value. In some contexts a variable can be discrete in some ranges of the number line and continuous in others.
DifferentFrom
Continuous-time variables
Discrete-time
Has abstract
enIn mathematics and statistics, a quantitative variable may be continuous or discrete if they are typically obtained by measuring or counting, respectively. If it can take on two particular real values such that it can also take on all real values between them (even values that are arbitrarily close together), the variable is continuous in that interval. If it can take on a value such that there is a non-infinitesimal gap on each side of it containing no values that the variable can take on, then it is discrete around that value. In some contexts a variable can be discrete in some ranges of the number line and continuous in others.
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Continuous or discrete variable
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enContinuous or discrete variable
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Calculus
Category:Mathematical terminology
Continuous function
Continuous geometry
Continuous modelling
Continuous series representation
Continuous spectrum
Continuous time
Continuous-time stochastic process
Countably infinite
Count data
Counting
Dependent variable
Difference equation
Differential equation
Discrete geometry
Discrete mathematics
Discrete measure
Discrete modelling
Discrete series representation
Discrete spectrum
Discrete time
Discrete time and continuous time
Discrete-time stochastic process
Discretization
Dummy variable (statistics)
Dynamical system
Econometrics
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Infinitesimal
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Integer programming
Interpolation
Interval (mathematics)
Logistic regression
Mathematics
Natural numbers
Number line
Optimization
Probability density function
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Probability mass function
Probit regression
Real number
Regression analysis
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Uncountable set
Variable (mathematics)
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Variable discreta y variable continua
Variable discrète
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Category:Mathematical terminology
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