# The number of failures for a cytogenics machine from contamination in biological samples is a Poisson random

## Question:

(a) If the lab usually processes 500 samples per day, what is the expected number of failures per day?

(b) What is the probability that the machine will not fail during a study that includes 500 participants? (Assume one sample per participant.)

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**Related Book For**

## Probability and Random Processes With Applications to Signal Processing and Communications

**ISBN:** 978-0123869814

2nd edition

**Authors:** Scott Miller, Donald Childers