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OpenStudy (anonymous):
From a given distribution of 50 numbers from 1 to 10 mu= 5.50 sigma-sq= 8.25 some samples were drawn, consisting of 4 numbers each. What was the standard deviation (adjusted for sample: n-1) of these means? 7.21, 6.21, 4.04, 4.95, 7.48, 4.57, 6.79, 3.82, 5.02
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