Errors in a billing process often lead to customer dissatisfaction and ultimately hurt bottom line profits. An article in Quality Progress discussed a company where 20% of the bills prepared contained an error. If 10 bills are processed, what is the probability that: 0 bills will contain an error?                                                                                                                                                          Exactly 1 bill will contain an error?                                                                                                2 or more bills will contain error?                                                                                                 What are the mean and standard deviation of the probability distribution?

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