Probability that customer receives no malfunctioning machine

Reference no: EM131028013

Used photocopy machines are returned to the supplier, cleaned, and then sent back out on lease agreements. Major repairs are not 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?

Reference no: EM131028013

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