Assume That Customer Arrivals at a Small Cafe Can Be

question 33

Multiple Choice

Assume that customer arrivals at a small cafe can be modeled by a Poisson distribution. The average arrival rate is 3 customers per hour. What is the probability of 2 or fewer arrivals in the next hour (to three decimal places) ?

• A) Cannot be determined from the information given
• B) 0.152
• C) 0.224
• D) 0.423

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Definitions:

Ionic Compounds

Chemical compounds composed of ions held together by electrostatic forces termed ionic bonding.

Solutes Dissolve

The process by which a solute interacts with a solvent, dispersing evenly at the molecular or ionic level to form a solution.

Temperature

A physical quantity representing the degree of hotness or coldness of an object or substance, usually measured in degrees Celsius, Fahrenheit, or Kelvin.

Powdered Sugar

Finely ground sugar, often mixed with a small amount of anti-caking agent to prevent clumping, used in baking and confectionery.