The mean deviation of the data 3,10,10,4,7,10,5 from the mean is (a) 2             (b) 2.57              (c)3          (d) 3.57

Explanation

To find the mean deviation of the data set \(3, 10, 10, 4, 7, 10, 5\) from the mean, we will follow these steps:

### Step 1: Calculate the Mean
First, we need to calculate the mean (\( \bar{x} \)) of the data.

\[ \text{Mean} = \frac{\text{Sum of all observations}}{\text{Number of observations}} \]
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