Least two copiers will break down on a given day
A company owns 4 copiers. The probability that on given day any one copier will break down is 0.64. Determine the probability that at least two copiers will break down on a given day?
a) 0.6960
b) 0.5398
c) 0.8638
d) 0.0225
e) 0.5806
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