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Mathematics → Statistics → Statistics and Probability Quiz

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26. If the distribution is symmetric about mean then the skewness is
(A) 0
(B) 1
(C) positive
(D) negative

27. The mean and variance of standard normal distribution is _____ and _____ respectively.
(A) 0, 1
(B) 1, 0
(C) –1, 1
(D) –∞, ∞

ANSWERS: STATISTICS AND PROBABILITY QUIZ
26. (A) 0
27. (A) 0, 1