A Small Grocery Store Is Considering Installing an Express Checkout

question 26

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 one customer is in the regular checkout line.

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Definitions:

Table Datasheet View

A representation of table data in a grid format, facilitating easy viewing and editing, similar to a spreadsheet layout within database management systems.

Records

A collection of related data items, usually arranged in fields within a database.

Form Design View

A graphical interface in software used for designing the layout of a form, allowing users to specify where data fields and labels appear.

Text Box

A GUI element that allows users to input or display text in a document or application.