The Expected Value, E(X), of a Uniform Random Variable X $a \leq x \leq b$

question 21

Multiple Choice

The expected value, E(X) , of a uniform random variable X defined over the interval $a \leq x \leq b$ , is:

• A)a + b.
• B)a - b.
• C)(a + b)/2.
• D)(a - b)/2.

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Definitions:

Adaptive Function

Traits or behaviors that have evolved to serve a specific survival or reproductive purpose in the context of natural selection.

Evolutionary Perspective

A theoretical approach that examines psychological traits, such as memory, perception, or language, from a modern evolutionary perspective, considering how evolutionary processes like natural selection have shaped them.

Behavioural Perspective

An approach in psychology that focuses on observable behaviors and the ways in which they are learned from the environment.

Positive Psychology

A branch of psychology focused on the study of positive human functioning and flourishing on multiple levels, including the biological, personal, relational, institutional, cultural, and global dimensions of life.