What is a Probability Mass Function (PMF)? A probability mass function (PMF), sometimes referred to as a frequency function, is a function that associates probabilities with discrete random variables.

Abstract: In this chapter, we introduce the concept of a random variable and develop the procedures for characterizing random variables, including the cumulative distribution function, as well as the ...

Amusement park patrons, wanting to go on a log ride, might not have to wait in line at all, they might have to wait for hours, or the wait could be anywhere in between. For a random log rider, the ...

The first step is to ensure that the given distribution actually is a valid probability distribution. As mentioned earlier, ...

So far, you learned about discrete random variables and how to calculate or visualize their distribution functions. In this lesson, you'll learn about continuous variables and probability density ...

The total area under the curve must equal 1, representing the fact that the probability of some outcome occurring within the entire range is certain. \[\int_{-\infty}^{\infty}f\left(x\right)dx=1\] ...

A discrete random variable is a type of random variable that can only take on a countable number of distinct values. A discrete random variable is a variable whose possible values are distinct and ...

Abstract: In this paper, ration of Weibull random variable and α - μ random variable is considered. This ratio can be used for evaluation performances wireless communication system operating in ...