In statistics, numerical random variables represent counts and measurements. n. A variable that assumes only values in a discrete set, such as the integers. Definition of discrete variable in the Definitions.net dictionary. continuous variable… Coordinate terms . All qualitative variables are discrete. discrete variable synonyms, discrete variable pronunciation, discrete variable translation, English dictionary definition of discrete variable. For these problems, let X be the number of classes taken by a college student in a semester. What does discrete variable mean? A continuous variable can be numeric or date/time. Meaning of discrete variable. Sometimes, a variable that takes on enough discrete values can be considered to be continuous for practical purposes. If you have a discrete variable and you want to include it in a Regression or ANOVA model, you can decide whether to treat it as a continuous predictor (covariate) or categorical predictor (factor). Discrete Variable. Define discrete variable. Variables can also be categorized into separable families, and in that case, a discrete variable is one such variable which is why it is also referred to as a categorical variable. When working with random variables, you need to be able to calculate and interpret the mean. For example, the length of a part or the date and time a payment is received. Another distinguishing feature of a discrete variable is that it is a whole value meaning that there can’t be another value between any two categories of its value. If the possible outcomes of a random variable can be listed out using a finite (or countably infinite) set of single numbers (for example, {0, […] Some quantitative variables are discrete, such as performance rated as 1,2,3,4, or 5, or temperature rounded to the nearest degree. The mean of discrete random variable (Expected Value) Question 3: “What is the mean of crew size?” The calculation of the mean of discrete random variable can be quite tricky as it can always be confused with the population mean which should only be applicable to a population but not to a discrete variable based on a random phenomenon/experiment.. Use the formula for the mean of a discrete random variable X to answer the following problems: Sample questions If 40% […] Information and translations of discrete variable in the most comprehensive dictionary definitions resource on the web. Variables that can only take on a finite number of values are called "discrete variables." They come in two different flavors: discrete and continuous, depending on the type of outcomes that are possible: Discrete random variables. discrete variable (plural discrete variables) A variable that takes values from a finite or countable set, such as the number of legs of an animal.