Consider the following statements regarding power of a continuous-time and discrete-time signals :
1. Power is the time average of energy.
2. A signal with finite energy has zero power.
3. A signal with finite power has infinite energy.
4. All finite periodic signals are power signals.
Which of the above statements are correct ?
1
1, 2, 3 and 4
2
1, 2 and 3 only
3
2, 3 and 4 only
4
1 and 4 only