4. Let the delay for a computer packets in the internet be modelled by T, which has the density (ct-0.5,0x}=1/2 c. Find the expected value of T, E[T] A4a Solve integral between 0 and 1 ct-0.5dt and find c=0.5 A4b= Solve integral between x and 1 0.5t-0.5dt and get t=1/4, A4c Integrate from 0 to 1 t times (0.5 t^-0.5) dx =1/3.

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