• 0 is sent with probability 0.3
• 1 is sent with probability 0.4
• 2 is sent with probability 0.3
• Due to noise, 0 is changed to 1 during transmission with probability 0.2
• Due to noise, 0 is changed to 2 during transmission with probability 0.1
• Due to noise, 1 is changed to 0 during transmission with probability 0.2
• Due to noise, 1 is changed to 2 during transmission with probability 0.1
• Due to noise, 2 is changed to 0 during transmission with probability 0.2
• Due to noise, 2 is changed to 1 during transmission with probability 0.1
Suppose that a 1 is received. What is the probability that a 1 was sent?