Electronics and Communication Engineering  Signals and Systems
Exercise :: Signals and Systems  Section 9
1. 
The total area under the probability distribution curve is 
A. 
1  B. 
0  C. 
depend upon curve equation  D. 
∞ 
Answer: Option A
Explanation:

2. 
Which one of following is correct condition to check the stability of system? 
A. 
Bounded I/P unbounded O/P  B. 
Bounded I/P and O/P  C. 
Bounded O/P and I/P  D. 
Bounded I/P Bounded O/P 
Answer: Option B
Explanation:

3. 
The inverse Fourier transform of the function F(ω) = is 
Answer: Option C
Explanation:

4. 
Let f_{1}(t) = G_{1}(t) + 4, f_{2}(t) = G_{2}(t) + 3. If G_{1}(t) and G_{2}(t) are uncorrected then the correlation between f_{1}(t) and f_{2}(t) are 
Answer: Option D
Explanation:

5. 
If p is the probability of success and q is the probability of failure, then the probability that there are r successes in n trails is 
A. 
^{n}c_{r} p^{r} q^{n} ^{} ^{r}  B. 
^{n}c_{r} p^{n } ^{r} q^{r}  C. 
^{n}c_{r} p^{r} q^{n} ^{+} ^{r}  D. 
^{n}c_{r} p^{n} q^{n} ^{ r} 
Answer: Option A
Explanation:
