.
How many different signals consisting of five symbols or less can be sent
using the dot and dash of Morse code?
~~~~~~~~~~~~~~~~
The number of different signals using precisely n symbols
(dot or dash of Morse code) is
, n= 1, 2, 4, . . .
Therefore, the answer to the problem's question is
N(signals) =
+
+
+
+
= 2 + 4 + 8 + 16 + 32 = 62. ANSWER
Solved.