Advances in medical and technological innovations have led to the  availability of numerous medical services, including a variety of cosmetic  surgeries that are gaining popularity, from minimal and noninvasive procedures  to major plastic surgeries. According to a survey on appearance and plastic  surgeries in South Korea, 20% of the female respondents had the highest  experience undergoing plastic surgery, in a random sample of 100 female  respondents. By using the Poisson formula, calculate the probability that the  number of female respondents is a) exactly 25 will do the plastic surgery b) at most 8 will do the plastic surgery c) 15 to 20 will do the plastic surgery

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