Which of the following is useful for testing univariate normality of distribution?
A. Q-Q plot
B. Shapiro-Wilk test
C. Jarque- Bera test
D. Scatter plot
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Correct answer: D. A, B and C only
Explanation
Univariate normality can be checked with a Q-Q plot, the Shapiro–Wilk test and the Jarque–Bera test; a scatter plot shows the relation between two variables.
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