x | f(x) | xP(x) | x^{2}P(x) |
0 | 0.1500 | 0.0000 | 0.0000 |
1 | 0.2500 | 0.2500 | 0.2500 |
2 | 0.2500 | 0.5000 | 1.0000 |
3 | 0.2500 | 0.7500 | 2.2500 |
4 | 0.1000 | 0.4000 | 1.6000 |
total | 1.9000 | 5.1000 | |
E(x) =μ= | ΣxP(x) = | 1.9000 | |
E(x^{2}) = | Σx^{2}P(x) = | 5.1000 | |
Var(x)=σ^{2} = | E(x^{2})-(E(x))^{2}= | 1.4900 |
variance =1.49
Current Attempt in Progress Consider the following discrete random distribution. X P(x) 0 .15 1 25...
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