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The mean of a set of 20 observations is 19.3. The mean is reduced by 0.5 when a new observation is added to the set. What is the new observation that has been added? |
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Answer» The mean of a set of 20 observations is 19.3. The mean is reduced by 0.5 when a new observation is added to the set. What is the new observation that has been added? |
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