The Expected Value of a Random Variable X Is 140

question 113

Multiple Choice

The expected value of a random variable X is 140 and the standard deviation is 14. The standard deviation of the random variable Y = 3X - 10 is:

• A)42
• B)6.48
• C)14
• D)32

Comprehend the role and impact of the cerebrum and cerebral hemispheres in cognitive functions.

Recognize the implications of brain damage on personality and cognitive abilities.

Identify key areas of the brain involved in language processing and their functions (Broca's area, Wernicke's area).

Distinguish between the functions of the left and right hemispheres of the brain.

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Definitions:

Alzheimer's Disease

A progressive neurodegenerative disorder characterized by memory loss, cognitive decline, and personality changes, ultimately leading to severe impairment in daily functioning.

Forgetful Acts

Incidents or occurrences where a person fails to remember a piece of information or perform a task, often due to distractions or memory lapses.

Representativeness Heuristic

A cognitive shortcut that involves making judgments based on how well something matches an existing prototype.

Confirmation Bias

The tendency to search for, interpret, favor, and recall information in a way that confirms one's preexisting beliefs or hypotheses.