A telephone exchange has 9000 subscribers. If the number of calls orig – McqOptions

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1.	A telephone exchange has 9000 subscribers. If the number of calls originating at peak time is 10, 000 in one hour, the calling rate is
A.	0.9
B.	10/9
C.	0.81
D.	0.1
Answer» C. 0.81

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