Consider an Espresso Stand with a Single Barista

question 9

Multiple Choice

Consider an espresso stand with a single barista.Customers arrive at the stand at the rate of 28 per hour according to a Poisson distribution.Service times are exponentially distributed with a service rate of 35 customers per hour.The average time in minutes a customer spends in the system (i.e. ,waiting and being served) is

• A)0.114 minute
• B)0.143 minute
• C)6.84 minutes
• D)8.58 minutes

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Definitions:

Ratio

A ratio is a quantitative relationship between two numbers showing the number of times one value contains or is contained within the other.

Ratio

A ratio represents a quantitative relationship between two or more numbers, showing how many times one value contains or is contained within the other.

Ratio

A mathematical term describing the quantitative relation between two amounts, showing the number of times one value contains or is contained within the other.

Equivalent Ratio

A proportion between two sets of quantities indicating their equality in value or function.