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.
Definitions:
Doctrine of Liability
Legal principles that determine the circumstances under which an individual or entity can be held legally responsible for an action or inaction.
Tort Connected
Related to civil wrongs that cause someone else to suffer loss or harm, resulting in legal liability for the person who commits the tortious act.
Uniform Commercial Code
The Uniform Commercial Code (UCC) is a comprehensive set of laws governing commercial transactions in the United States, aiming to make business laws more consistent across states.
Rights of First Refusal
A contractual right that gives its holder the option to enter a business transaction with the owner of something, before the owner is entitled to enter into that transaction with a third party.
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