# Brakes for a Model of Automobile Fail with a Poisson

Brakes for a model of automobile fail with a Poisson distribution at an annual rate of 4.4/yr.

a) What is the probability that <= 6.6 brakes will fail in one year?

b) What is the probability that => 1 brakes will fail in 1 year?

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Brakes for a model of automobile fail with a Poisson distribution at an annual rate of 4.4/yr.

a) What is the probability that <= 6.6 brakes will fail in one year?

Let X be the number of brakes in one year. Then X follows a Poisson distribution with mu=4.4. So,

P(X<=6.6)=P(X<=6)=0.84365

Note: I used a CASIO fx-9750 GII ...

#### Solution Summary

The solution discusses brakes for a model of automobile fail with a Poisson distribution of 4.4/year.

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