The mean of 10 observations is 12. If mean of first 6 observations is 13. Find the mean of remaining 4 observations.

Explanation

To find the mean of the remaining 4 observations, we can follow these steps:

### Step 1: Calculate the total sum of all 10 observations
We know that the mean of 10 observations is 12. The formula for mean is given by:

\[ \text{Mean} = \frac{\text{Sum of observations}}{\text{Total number of observations}} \]
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