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ConceptProbability Distribution - Probability Mass Function (P.M.F.)

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#### Question

The probability mass function (p.m.f.) of X is given below:

X=x | 1 | 2 | 3 |

P (X= x) | 1/5 | 2/5 | 2/5 |

find E(X^{2})

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Solution for concept: Probability Distribution - Probability Mass Function (P.M.F.). For the courses HSC Arts, HSC Science (Computer Science), HSC Science (Electronics), HSC Science (General)