Normal Random Variable - Random Signals and Processes Primer with MATLAB - page 279

2 =4

m=5, s

40

20

0

20 0

-

1000 2000 3000 4000 5000

n

6000 7000 8000 9000 10000

2 =64

m=5,

s

40

20

0

- 20

0 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000

n

Fig. 4.30 Random variables with equal mean value and different variances

2 =4

m=5, s

0.2

0.15

0.1

0.05

0
- 20 - 15 - 10 - 5 0 5 10 15 20 25 30

range

2 =64

m=5, s

0.2

0.15

0.1

0.05

0

- 20 - 15 - 10 - 5 0 5 10 15 20 25 30

range

Fig. 4.31 PDF of random variables with equal mean value and different variances