SwissAir maintains a mailing list of people who have taken trips to Europe in the last three years. The airline knows that 8% of the people on the mailing list will make arrangements to fly SwissAir during the period following their being mailed a brochure.
In an experimental mailing, 20 people are mailed a brochure. What is the probability that at least one of them will book a flight with SwissAir during the coming season?