Step 1: Understand the receiver design.
In an Amplitude Modulation (AM) system, the carrier signal is transmitted along with the modulated signal, requiring more complex receivers. On the other hand, a suppressed carrier system in Single Sideband (SSB) modulation omits the carrier, simplifying the receiver design and reducing the cost.
Step 2: Analyze the correct statement.
Thus, the receiver of a suppressed carrier system is simpler and cheaper than that of the AM system.
Final Answer:
\[
\boxed{(3) \, \text{The receiver of a suppressed carrier system is simpler and cheaper than that of the AM system.}}
\]