A random variable defined on a discrete sample space will be discrete, while it is possible to define a discrete random variable on a continuous sample space. The cumulative distribution function contains most o
• A discrete random variable has an associated probability mass function (PMF), which gives the probability of each numerical value that the random variable can take. • A function of a discrete random variable defines another discrete random variable, whose PMF can be obtained from the PMF...
6.2.1 Discrete Random Variable A discrete random variable X has a finite or countable sample space, which contains all the possible outcomes of the random variable X. The probability that the outcome of a discrete random variable X is equal to x is denoted as P(X=x) or in a shorter ...
Analysts denote a continuous random variable as X and its possible values as x, just like the discrete version. However, unlike discrete random variables, the chances of X taking on a specific value for continuous data is zero. In other words: P (X = x) = 0, where x is any specific ...
discrete random variable 英 [dɪˈskriːt ˈrændəm ˈveəriəbl] 美 [dɪˈskriːt ˈrændəm ˈveriəbl]离散随机变量
A random variable is said to be discrete if the set of values it can take (its support) has either a finite or an infinite but countable number of elements. Its probability distribution can be characterized through a function called probability mass function. ...
单词 discrete random variable 释义 discrete random variable Definition That can take any one of a value from a definite (or countably indefinite) number of discrete values. Use 'discrete random variable' in a Sentence You may not be able to figure out how a discrete random variable will ...
离散型随机变量是统计学与概率论中用于描述可数结果的重要概念,其核心特征在于取值范围的有限性或可数性。以下从定义、示例、对比、分布及应用等方面展开说明。 定义与核心特征 离散型随机变量指所有可能取值能够被逐一列举(如自然数集合)或有限个数值构成的随机变量。例如,抛硬币出现...
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discrete random variable 英文discrete random variable 中文【计】 离散随机变量