The standard deviation is ….. To the mean deviation taken from the arithmetic mean

Explanation

To solve the question, we need to understand the relationship between standard deviation and mean deviation.

### Step-by-Step Solution:

1. **Understanding the Definitions**:
- **Mean Deviation**: It is the average of the absolute deviations of each data point from the mean.
- **Standard Deviation**: It measures the amount of variation or dispersion of a set of values.

2. **Relationship Between Standard Deviation and Mean Deviation**:
- It is a known statistical property that the standard deviation is always greater than or equal to the mean deviation when calculated from the arithmetic mean.

3. **Filling in the Blank**:
- Based on the relationship, we can conclude that the standard deviation is **greater than or equal to** the mean deviation taken from the arithmetic mean.

4. **Final Answer**:
- Therefore, the complete statement is: "The standard deviation is **greater than or equal to** the mean deviation taken from the arithmetic mean."