are perceptual-like experiences that an individual believes are real, but that are not evident to others.

Hallucination.

Hallucinations are experience and sensation and individual believes it is real but not evidence to others..The experiences and sensation are livid and real to the person experiencing them.

Types of Halluucination include;

Auditory Hallucination

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Olfactory Hallucination.

Gustatory Hallucination.

Tectile and somatic Hallucination.

Explanation:

changes in factors like average income and preferences can cause an entire demand curve to shift right or left. this causes a higher or lower quantity to be demanded at a given price. demand curves relate the prices and quantities demanded assuming no other factors change. it is important for consumers to know this information, because it is crucial for them to know what they can afford and can't afford. i hope this .