Find the probability of customer

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Used photocopying machines are returned to the supplier, cleaned, and then sent back out on lease agreements. Major repairs are not made, and, as a result, some customers receive malfunctioning machines. Among eight used photocopiers in supply today, three are malfunctioning. A customer wants to lease four of these machines immediately. Hence four machines are quickly selected and sent out, with no further checking. Find the probability that the customer receives

a No malfunctioning machines.

b At least one malfunctioning machine.

c Three malfunctioning machines.

Reference no: EM131196764

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