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Questions › JNU › JNU SSS 2013 › Q52
1 mark, −0.25Statistics › Random variables and standard distributions › Expectation and varianceEasyabout 1 min

JNU SSS 2013 Question 52: Random variables and standard distributions

Which of the following statements must be incorrect to describe a set of properties for the probability distribution of a random variable XXX?

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Plain-text version

Which of the following statements must be incorrect to describe a set of properties for the probability distribution of a random variable X? (A) E(X) = 0 (B) Standard Deviation (X) = -1 (C) Variance (X) = 1 (D) The distribution of X is not symmetric about E(X)

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

What this question tests

This question is on Expectation and variance, part of Random variables and standard distributions in Statistics.

The mean and spread of a random variable, and how they change under transformations and sums.

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Question from the JNU SSS 2013 paper. Solutions are TestStop's own. Not affiliated with or endorsed by any examination authority.