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In: Statistics and Probability

a package delivery service claims that 55% of all package arrive at the address late. Assuming...

a package delivery service claims that 55% of all package arrive at the address late. Assuming that conditions for binomial holds, if a sample size of 7 is randomly selected , what is the probability that at most 4 packages will arrive on time? what is the probability that at leadt one pavkage will arrive on time? what is the probability that exactly 4 packages will arrive on time?

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