# Learning Expected Value Formula Essay

# Learning Expected Value Formula Essay

**Length:** 526 words (1.5 double-spaced pages)

**Rating:** Good Essays

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In this topic we will discuss about learning discrete expected value formula and example problems Expected value is one of the basic ideas in probability, in a sense more common than probability itself. The expected value of a real-valued chance variable provides a compute of the center of the distribution of the variable. More significantly, by taking the expected value of various functions of a common random variable, we can calculate a lot of interesting features of its distribution, including spread and correlation.

Formula for expected value:

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

x = discrete random variable

P(x) = probability distribution

Example problems for learning expected value formula:

Learning expected value formula - Example 1:

1) Calculate the expected value for the discrete chance variable (1/16). Where x is start from 0 to 5.

Solution:

Expected value is recognized for the discrete chance variable by utilize the formula,

E(x) = sum xi P(xi)

...

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