12. A mail-order company receives an average of five orders per 500 solicitations. If it sends out 100 advertisements, find the probability of receiving at least two orders.
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We are given that the company receives an average of 5 orders per 500 solicitations. So, the probability of receiving an order for a single solicitation is $\frac{5}{500} = \frac{1}{100}$. Show more…
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