A Random Variable X Has the Following Probability Distribution $$\begin{array} { c c } x &fx) \\0 & .08 \\1 & .17 \\2 & .45\\3 & .25 \\4 & .05\end{array}$$

question 43

Short Answer

A random variable x has the following probability distribution:
$$\begin{array} { c c } x &fx) \\0 & .08 \\1 & .17 \\2 & .45\\3 & .25 \\4 & .05\end{array}$$
a. Determine the expected value of x.
b. Determine the variance.

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Definitions:

Brain Maturation

The process by which the brain develops and matures, involving structural and functional changes that enhance cognitive and behavioral capabilities.

Normal

Adhering to the average or typical standards or patterns of behavior, health, or condition within a particular society or context.

Sensation

The response of a sensory organ (eyes, ears, skin, tongue, nose) when it detects a stimulus.

Perception

The mental processing of sensory information when the brain interprets a sensation.