A communication system transmits symbols labeled A, B, and C. Because of errors (noise) introduced by the channel, there is a nonzero probability that for each transmitted symbol, the received symbol differs from the transmitted one. Table 1 describes the joint probability for each possible pair of transmitted and received symbols under a certain set of system conditions. a. Find marginal probabilities P(A,) and P(A,) Symbol Sent Symbol Received C b. Find P(C|B,) A 0.05 0.10 0.09 C. Calculate the probability of a transmission error В 0.13 0.08 0.21 C 0.12 0.07 0.15
A communication system transmits symbols labeled A, B, and C. Because of errors (noise) introduced by the channel, there is a nonzero probability that for each transmitted symbol, the received symbol differs from the transmitted one. Table 1 describes the joint probability for each possible pair of transmitted and received symbols under a certain set of system conditions. a. Find marginal probabilities P(A,) and P(A,) Symbol Sent Symbol Received C b. Find P(C|B,) A 0.05 0.10 0.09 C. Calculate the probability of a transmission error В 0.13 0.08 0.21 C 0.12 0.07 0.15
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Transcribed Image Text:Question 2:
A communication system transmits symbols labeled A, B, and C. Because of errors (noise)
introduced by the channel, there is a nonzero probability that for each transmitted symbol, the
received symbol differs from the transmitted one. Table 1 describes the joint probability for each
possible pair of transmitted and received symbols under a certain set of system conditions.
a. Find marginal probabilities P(A,) and P(A,)
Symbol Sent
Symbol Received
C
b. Find P(C,|B,)
A
B
A
0.05
0.10
0.09
C. Calculate the probability of a transmission error
В
0.13
0.08
0.21
C
0.12
0.07
0.15
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