Coefficient of Kurtosis β2 = ____________, where μ2 and μ4 are the second and fourth moments about mean.
μ4/μ2²
The coefficient of kurtosis β2 is given by the formula: β2 = μ4 / μ2², where μ2 and μ4 are the second and fourth moments about the mean. Therefore, option 3, "μ4/μ2²," is the correct answer.
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