Devise a method for computing the sample variance

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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 given Exercise, verify that the sample variance is 1.25

Exercise

Devise a method for computing the sample variance based on the frequencies, fx.

Reference no: EM131397145

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Devise a method for computing the sample variance : 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.- Devise a method for computing the sample variance based on the frequencies, fx.

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