a binary communication channel carries data as one of the two types of signals denoted by 'a' and 'b'. owing to noise a transmitted 'a' is sometimes received as 'b' and a transmitted 'b' is sometimes received as 'a'. for a given channel assume a probability of 0.94 that a transmitted 'a' is correctly received as 'a' and the probability of 0.91 that a transmitted 'b' is received as 'b' further assume a probability of 0.45 of transmitting a 'a'. If a signal is sent,determine probability that 'b' is received. probability that 'b' was transmitted given that 'a' was received