Let X be distributed with pdf f (x)=1 if 0 < x < 1, is equal to zero otherwise. Then find the EX, and Var(X).
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JNU SSS 2020 Question 21: Random variables and standard distributions
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Let X be distributed with pdf f (x)=1 if 0 < x < 1, is equal to zero otherwise. Then find the EX, EX² and Var(X). (A) 1/2, 1/3, 1/4 (B) 1/2, 1/3, 1/12 (C) 1/2, 1/4, 1/4 (D) 1/2, 1/4, 1/12
Also written as: Let X be distributed with pdf f (x)=1 if 0 < x < 1, is equal to zero otherwise. Then find the EX, EX^2 and Var(X).
Random variables and standard distributions has come up 173 times in 7 exams since 2005.
What this question tests
This question is on Uniform distributions, part of Random variables and standard distributions in Statistics.
Equally likely outcomes over a finite set or an interval.
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