A Small Grocery Store Is Considering Installing an Express Checkout

question 106

Short Answer

A small grocery store is considering installing an express checkout line. Let X be the number of customers in the regular checkout line. Note that these numbers include the customers being served, if any. The probability distribution of X is given in the table below.
-Find the probability that at least two people are in line.

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Definitions:

Motor Coordination Retardation

A delay or difficulty in the development of skills that enable smooth and precise movements, often affecting physical abilities.

Blind and Deaf

Refers to the condition in which an individual lacks the ability to see and hear, requiring adaptations in communication and learning.

Prostaglandins

A group of physiologically active lipid compounds having diverse hormone-like effects in animals, including influencing inflammation and pain.