Mathematics, 20.02.2020 18:46 jackfrost5
An information source generates symbols at random from a four-letter alphabet {a, b, c, d} with probabilities
P r[a] = 1/2,
P r[b] = 1/4,
P r[c] = 1/8,
P r[d] = 1/8.
A coding scheme encodes these symbols into binary codes as follows:
0
10
110
111
Let X be the random variable denoting the length of the code, ie, the number of binary symbols
a. What is the range of X?
b. Sketch the cdfF_X (x) of X and specify the type of X
c. Find P(Xβ€1),P(X>1)& P(1β€Xβ€2)
Answers: 1
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