If X and Y Are Independent Random Variables,which of the Following

question 247

Multiple Choice

If X and Y are independent random variables,which of the following identities is false?

• A)Cov(X,Y)= 1
• B)Cov(X,Y)= 0
• C)E(X + Y)= E(X)+ E(Y)
• D)Var(X + Y)= Var(X)+ Var(Y)

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Definitions:

Depressants

Drugs (such as alcohol, barbiturates, and opiates) that reduce neural activity and slow body functions.

Neural Activity

The functioning and signaling processes within neurons, including action potentials and synaptic transmission.

Body Functions

Pertains to the physiological operations of the body, including the activities of organs and systems essential for maintaining life and health.

Tolerance

The capacity to endure continued subjection to something, such as a drug or environmental conditions, without adverse reaction.