Problem 4: The phone lines to an airline reservation systenm are occupied 50% of the time....

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Problem 4: The phone lines to an airline reservation systenm are occupied 50% of the time. Assume that the events that the li

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Answer 1

Answer #1

given that p =0.50 n =10

a) p(x=3) = 10c3 (0.5)^3(0.5)^7 =0.1172

b)p(x>= 1) = 1-p(x=0) =0.9990

c) expected number = n*p

=10*0.5

=5

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Answer 2

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Problem 4: The phone lines to an airline reservation systenm are occupied 50% of the time....

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