the probability that a randomly selected individual in a certain community has made an online purchase is 0.37. suppose that a sample of 11 people from the community is selected, what is the probability that at most 3 of them has made an online purchase?
Given the probability that a randomly selected individual in a certain community has made an online purchase is p = 0.37. suppose that a sample of n = 11 people from the community is selected, based on the given details we will apply binomial probability distribution to find the probability.
The probability that at most 3 of them has made an online purchase Pr(X<=3) is calculated as:
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