The Records of a Department Store Show That 20% of Its

question 118

Short Answer

The records of a department store show that 20% of its customers who make a purchase return the merchandise in order to exchange it. In the next six purchases,
a.what is the probability that three customers will return the merchandise for exchange?
b.what is the probability that four customers will return the merchandise for exchange?
c.what is the probability that none of the customers will return the merchandise for exchange?

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Definitions:

Aldosterone

is a steroid hormone produced by the adrenal glands; it regulates salt and water balance in the body, influencing blood pressure.

Hyposecretion

A condition characterized by the insufficient production and release of hormones by the endocrine glands.

Aldosterone

A hormone produced by the adrenal glands that helps regulate blood pressure by controlling sodium and potassium levels in the body.

Plasma Membrane

The lipid bilayer that encloses the cytoplasm of a cell, controlling the passage of substances in and out.