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The mean of five observations is 4 and their variance is 5.2. If three of these observations are 1,2 and 6, then the other two are
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Thirty women were examined in a hospital by a doctor and the number of heart beats per minute were recorded and summarized as follows. Find the mean heart beats per minute for these women, choosing a suitable method.Question Text | The mean of five observations is 4 and their variance is 5.2. If three of these observations are 1,2 and 6, then the other two are |