Question

determine the mean or expected value of random variable below​

Answer 1

Answer:

For a discrete random variable, the expected value, usually denoted as or, is calculated using: = E (X) = Exif(xi)

Answer 2

Concept:

A random variable or a function that assigns values to each of an experiment's results is a variable whose value is unknown. Because random variables are intended to measure the results of a random event, they can have a wide range of values.

Given:

To find the mean of a random variable.

Find:

The mean of a random variable.

Solution:

The random variable be $X$, and $P(X)$ is the probability of that random variable. The mean of the random variable is the sum of the product of $X$ with $P(X)$.

Hence, the mean of the random variable is $\sum X*P(X)$.