A random variable x has this probability distribution:
x |
0 |
1 |
2 |
3 |
4 |
5 |
p(X) |
0.1 |
0.3 |
0.4 |
0.1 |
? |
0.05 |
Find s
1. |
1.19 |
|
2. |
3.13 |
|
3. |
4.03 |
|
4. |
1.5 |
Ans 1.19
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