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If the probability that an individual suffers a bad reaction from injection of a given serum is 0.001, determine the probability that out of 2000 individuals;

a.) Exactly 3
b.) More than 2 individuals will suffer a bad reaction.

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#### Solution Preview

Because, here the sample size is quite large, and probability is very small, therefore, the distribution will be considered to be Poisson distribution.
<br>
<br>sample size (n) = 2000
<br>probability of bad reaction = p = ...

#### Solution Summary

If the probability that an individual suffers a bad reaction from injection of a given serum is 0.001, determine the probability that out of 2000 individuals;

a.) Exactly 3
b.) More than 2 individuals will suffer a bad reaction.

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