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goldenfox [79]
3 years ago
6

A life insurance company has determined that each week (7 days) an average of seven claims is filed in its Nashville branch. Def

ine x as the number of claims filed in a one-week period. What is the probability that during the next 3 days, two claims will be filed?
Mathematics
1 answer:
goldenfox [79]3 years ago
7 0

Answer:

The probability of having two claims in three days is 0.225.

Step-by-step explanation:

This type of process can be modeled by the Poisson distribution.

This distribution has a rate, that in this case is x: number of claims filled in a one-week period.

The probabilty density function can be written as

P(y=k)=\frac{(xt)^ke^{-xt}} {k!}

In this case, t =3 \,days =3/7\,weeks= 0.429\,weeks.

The probablity of having two claims in three days is:

P(y=2)=\frac{(7*(3/7))^2e^{-7*(3/7)}} {2!}=\frac{3^2*e^{-3}}{2}=\frac{9*0.05}{2}=0.225

The probability of having two claims in three days is 0.225.

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