Random Variables
Random Variables Assignment Help | Random Variables Homework Help
Random Variables Assignment Homework help
A random variable is a variable that contains the outcomes of a chance experiment. Suppose and experiment is to measure the arrivals of automobiles at a turnpike tollbooth during a 30-second period. The possible outcomes are: 0 cars, 1 car, 2 cars, …, n cars. These numbers (0, 1, 2, …, n) are the values of a random variable. Suppose another experiment is to measure the time between the completion of two tasks is a production line. The values will range from 0 to n seconds. These time measurements are the values of another random variable.The two categories of random variables are
1- Discrete random variables
2- Continuous random variables
A random variable is a discrete random variable if the set of all possible values is at most a finite or a countably infinite number of possible values
Continuous random variables take on values at every point over a given interval.
The out come for random variables and their associated probabilities can be organized into distributions. The two types of distributions are discrete distributions, constructed from discrete random variables, and continuous distributions, based on continuous random variables.