In a Multiple Regression Model, the Probability Distribution of the Error

question 110

Multiple Choice

In a multiple regression model, the probability distribution of the error variable $\varepsilon$ is assumed to be:

• A) normal.
• B) non-normal.
• C) positively skewed.
• D) negatively skewed.

---

Definitions:

Synaptic Receptors

Protein molecules on the surface of neurons where neurotransmitters bind to transmit signals across synapses.

Active Ingredient

The component of a medication, herb, or concoction that is biologically or pharmacologically responsible for its effects.

Inhibitory Neurotransmitters

Neurotransmitters that decrease the probability of the neuron firing action potentials, thereby reducing neural activity.

Excitatory Neurotransmitters

Chemical messengers in the nervous system that increase the likelihood that a neuron will fire an action potential.