engineering recuitment NIELIT Scientific Assistant Mock Test 2025 Engineering Mathematics Probability and Statistics Statistical Variables
In the following table, x is a discrete random variable and p(x) is the probability density. The standard deviation of x is
|
X |
1 |
2 |
3 |
|
P(x) |
0.3 |
0.6 |
0.1 |
1
0.18
2
0.36
3
0.54
4
0.6