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Questions › GATE › GATE 2025 › Q41
1 markStatistics › Random variables and standard distributions › Random variables, PMFs, PDFs and CDFsModerateabout 2 min

GATE 2025 Question 41: Random variables and standard distributions

If XXX is a continuous random variable whose probability density function is given by

fX(x)={1x2for 1<x<∞0elsewheref_X(x) = \begin{cases} \dfrac{1}{x^2} & \text{for } 1 < x < \infty \\ 0 & \text{elsewhere} \end{cases}fX​(x)=⎩⎨⎧​x21​0​for 1<x<∞elsewhere​

Then the median of XXX is ______ (in integer)

Answer and worked solution

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Plain-text version

If X is a continuous random variable whose probability density function is given by f_X(x) = { 1/x² for 1 < x < ∞; 0 elsewhere } Then the median of X is (in integer)

Also written as: If X is a continuous random variable whose probability density function is given by f_X(x) = { 1/x^2 for 1 < x < inf; 0 elsewhere } Then the median of X is (in integer)

Random variables and standard distributions has come up 173 times in 7 exams since 2005.

What this question tests

This question is on Random variables, PMFs, PDFs and CDFs, part of Random variables and standard distributions in Statistics.

Describing a random variable by its mass, density or distribution function.

TestStop has 33 past-paper questions on this subtopic.

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Question from the GATE 2025 paper. Solutions are TestStop's own. Not affiliated with or endorsed by any examination authority.