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The following table shows the probability distribution for a discrete random
variable.

What is the mean of this discrete random variable? That is, what is E(X), the
expected value of X?
A. 28.5
B. 31.29
C. 30.47
D. 29.5

The following table shows the probability distribution for a discrete random variable What is the mean of this discrete random variable That is what is EX the e class=

Respuesta :

The mean(expected value) of this discrete random variable will be 30.47.

What is the expected value?

The probability times the worth of each result produces the expected value.

The expected value of X is found as;

[tex]\rm E(X)=23 \times 0.16 +25 \times 0.09 +26 \times 0.18 + 31 \times 0.12 +34 \times 0.24 +38 \times 0.21 \\\\E(x)=30.47[/tex]

Hence the mean(expected value) of this discrete random variable will be 30.47.

To learn more about the expected value refer;

https://brainly.com/question/13945225

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