In the Notation Below,X Is the Random Variable,E and V

question 276

Multiple Choice

In the notation below,X is the random variable,E and V refer to the expected value and variance,respectively.Which of the following is false?

• A)E(3X)= 3E(X)
• B)V(2)= 0
• C)E(X + 1)= E(X)+ 1
• D)All of these choices are true.

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Definitions:

Achieving Stage

In developmental psychology, a phase where individuals successfully manage the tasks of adulthood, such as career development, marriage, and family life.

Logical Operations

Cognitive processes that involve reasoning, including the ability to conceptualize abstract principles and apply logical thinking to solve problems.

Concrete Problems

Issues or challenges that are tangible, well-defined, and can be directly experienced or handled.

Scaffolding

A teaching method that involves giving support to students as they learn new concepts, gradually removing the support as students become more independent in the learning process.