Consider an Espresso Stand with a Single Barista

question 60

Multiple Choice

Consider an espresso stand with a single barista.Customers arrive to 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 probability that the server is idle is

• A)0.20
• B)0.60
• C)0.80
• D)1.00

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Definitions:

RLC Parallel Circuit

An electrical circuit that contains a resistor (R), inductor (L), and capacitor (C) all connected in parallel, affecting the overall impedance differently from a series circuit.

Applied Voltage

The voltage that is applied across a component or circuit from an external source, driving current through it.

Parallel Resonant Circuits

Circuits where components are connected in parallel, bringing the circuit to resonance at a specific frequency where the inductive and capacitive reactances are equal in magnitude but opposite in phase.

Q

In electrical and electronic engineering, Q or quality factor refers to the measure of the efficiency of a reactive component, such as an inductor or capacitor, representing the ratio of stored vs. dissipated energy per cycle.