(Answered) Question for a sample of n participants the relative

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Question: For a sample of n participants, the relative frequencies are f₀/n = .2, f₁/n = .4, f₂/n = .2, f₃/n = .15, and f₄/n = .05. The sample mean is 1.45. Using your answer to Exercise 18, verify that the sample variance is 1.25

Exercise: Devise a method for computing the sample variance based on the frequencies, f_x.

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