Mathematics, 11.11.2020 02:00 amandasantiago2001
The communication monitoring company Attivio has reported that 91% of e-mail messages are spam. Suppose your inbox contains 25 messages. Assume messages arrive independently and at random.
a) What are the mean and standard deviation of the number of real messages you should expect to find in your inbox?
b) What’s the probability that you’ll find only 1 or 2 real messages?
Answers: 2
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The communication monitoring company Attivio has reported that 91% of e-mail messages are spam. Supp...
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