I need help with a math problem Mathematics Assignment Help. I need help with a math problem Mathematics Assignment Help.

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Telephone sales have

skyrocketed this past month. The

probability that 1 of the 4 telephone lines is busy is 75%. Therefore, currently the probability of all 4

lines being busy at the same time is about 32%.

I want to reduce the probability of all telephone lines being busy at

the same time.If I add 2 more telephone

lines, how much do I reduce the probability of all telephone lines being busy

at the same time? (Assume the probability that any phone line is busy remains at 75%)

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