Question: how do I solve this question survey shows that about 20% of those over the age of 65 years old are in danger of catching

how do I solve this question

survey shows that about 20% of those over the age of 65 years old are in danger of catching COVID-19. If 10 persons over the age of 65 are randomly selected (assuming a binomial distribution), answer the following questions:

Round all final answers to 3 decimal places and express answers in decimal form (i.e. 0.003 instead of 0.300%)

(a) the probabilitiy that exactly 4 have COVID-19 is (b) the probability that at most 3 have COVID-19 is (c) the probability that at least 1 has COVID-19 is (d) the probability that between at least 1 and no more than 4 have COVID-19 is

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