SOLUTION: Hello ..using the hypergeometric probability distribution formula Used photocopy machines are returned to the supplier, cleaned, and then sent back out on lease agreements. M

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 Question 364908: Hello ..using the hypergeometric probability distribution formula Used photocopy machines are returned to the supplier, cleaned, and then sent back out on lease agreements. Major repairs are made, however, and as a result, some customers receive malfunctioning machines. Among eight used photocopiers available today, three are malfunctioning. A customer wants to lease four machines immediately. To meet the customer's deadline, four of the eight machines are randomly selected and, without further checking, shipped to the customer...what is the probability that the customer receives (a) no malfunctioning machines (b) at least one malfunctioning machine? thank youAnswer by robertb(4012)   (Show Source): You can put this solution on YOUR website!a) b)Events a and b are coomplementary, and so the probability for this is