GATE | CS | 2011 | Engineering maths | Probability | Question 18

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If the difference between expectation of the square of a random variable (E[X²]) and the square of the expectation of the random variable (E[X])² is denoted by R, then?

R = 0

R < 0

R >= 0

R > 0

This question is part of this quiz :

GATE CS 2011,Probability,50 Aptitude & Reasoning MCQs with Answers
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GATE
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Engineering Mathematics
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