AP EAMCET Engineering 18 Sep 2020 Shift 1 Paper

Section: Mathematics

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Question : 30 of 160

Marks: +1, -0

Suppose X has the following probability mass function

P(X=0)=0.2,P(X=1)=0.5,P(X=2)=0.3.

What E[X2]=?

2.89
1.70
1.10
1.21

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