Find the standard deviation of 8,11,14,17,20,23,26.

Explanation

To find the standard deviation of the given data set \(8, 11, 14, 17, 20, 23, 26\), we will follow these steps:

### Step 1: Calculate the Mean (\( \bar{x} \))
The mean is calculated using the formula:
\[ \bar{x} = \frac{\sum x_i}{n} \]
where \( \sum x_i \) is the sum of all observations and \( n \) is the number of observations.
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