Consider the TCP procedure for

Consider the TCP procedure for estimating RTT. Suppose that a=0.1. Let SampleRTT₁, be the most recent sample RTT, let Sample RTT₂ be the next most recent sample RTT, and so on.
a. For a given TCP connection, suppose four acknowledgments have been returned with corresponding sample RTT_s SampleRTT₄, SampleRTT₃, SampleRTT₂, and SampleRTT₁, Express EstimatedRTT in terms the four sample RTT_s.
b. Generalize your formula for n sample RTT_s.
c. For the formula in part(b)let n approach infinity. Comment on why this averaging procedure is called an exponential moving average.