It has been known from the past experience that two percents of your
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It has been known from the past experience that two percents of your emails are spam. Suppose you will receive 200 emails.
(a) Find the mean and variance of the number of spam emails among those.
(b) Using the Poisson approximation, find the probability that there will be at least 3 spam emails among those.
11 years ago
Answer for: It has been known from the past experience that two percents of your
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