What Is the Probability That 3 or More Phone Calls

question 9

Essay

What is the probability that 3 or more phone calls are received in any hour of operation?
$\begin{array}{lllll}&\text {A}&\text {B}&\text {C}&\text {D}\\&\text {\# of phone calls } & \text { P\# of phone calls)}&\text { \# of phone calls}&\text { P\# of phone calls) }\\1\\\hline2 & 1 & 0.10 & 1 & 0.10 \\3 & 2 & 0.40 & 2 & 0.50 \\4 & 3 & 0.30 & 3 & 0.80 \\5 & 4 & 0.15 & 4 & 0.95 \\6 & 5 & 0.05 & 5 & 1.00\end{array}$

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Definitions:

Course of Dealing

The behavior and pattern of actions between parties that establishes a common basis for understanding their conduct in executing agreements.

Nonconforming Goods

Goods delivered under a sales contract that fail to meet the quality or specifications agreed upon by the seller and buyer.

Cure Defects

The action of rectifying or fixing flaws or deficiencies in a product, service, or legal document.

Uniform Commercial Code

A comprehensive set of laws governing commercial transactions in the United States, intended to standardize laws across states.