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?

---

Definitions:

Perfect Income Equality

A theoretical economic condition where all individuals or households earn exactly the same income, leading to absolute equity in income distribution.

Incidence Of Poverty

The proportion or frequency of individuals or families whose income falls below the poverty line, making it difficult to afford basic life necessities.

Children

Young human beings who are not yet fully grown, often considered in the context of family, education, and development.

Elderly

Refers to individuals who are advanced in age, typically considered to be those who are 65 years or older, often associated with retirement and receiving senior citizen benefits.