A mail-order department store has 5 telephone lines available for customers who wish to place their orders. If the probability that during business hours any one of the 5 telephone lines is engaged is 1/3, find the probability that when a customer calls to place an order all 5 lines will be in use.
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Thanks
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=(1/3)*(1/3)*(1/3)*(1/3)*(1/3)
=(1/3)^5
=(1/243)
=(1/3)^5
=(1/243)