2) A pharmaceutical factory has 8 contacts for the wholesale of medicine, and the company believes that for each contact the probability of making a sale is A%. Find the probability that the company makes: a. Find the probability that the factory makes at least two sales. b. Find the probability that the factory makes no sale. C. Find mean, and variance. Note that: A is first two-digit number (before English alphabet letter) from your college ID. B is last four-digit number (after English alphabet letter) from your college ID. For example, if your MEC ID is 16F23451, then A = 16 and B = 3451

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