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The mean and standard deviation of six o...

The mean and standard deviation of six observations are 8 and 4, respectively. If each observation is multiplied by 3, find the new mean and new standard deviation of the resulting observations.

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To solve the problem, we need to find the new mean and new standard deviation after multiplying each observation by 3. ### Step 1: Find the new mean The mean (average) of a set of observations is calculated as: \[ \text{Mean} = \frac{\Sigma x_i}{n} \] ...
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