Solving Expected Value X

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Introduction for solving expected value x:

In this topic we will discuss about solving expected value x for discrete chance variable. Expected value is one of the fundamental thoughts in probability, in a sense more general than probability itself. The expected value of a real-valued chance variable offers a compute of the center of the distribution of the variable. More significantly, by taking the expected value of a variety of functions of a general random variable, we can work out a lot of interesting features of its distribution, including spread and correlation.

Formula for solving expected value x:

The following formula which is used to calculate expected value for discrete random variable shows given below.

Expected value E(x) = sum (xi. P (xi))

x = discrete random variable

P(x) = probability distribution

Example problems for solving expected value x:

Solving expected value x - Example 1:

1) Evaluate the expected value for the discrete chance variable (1/18). Where x is start from 0 to 4.

Solution:

Expected valu...

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