# What does a standard deviation of 0 mean?

## What does a standard deviation of 0 mean?

A **standard deviation** is a number that tells us. to what extent a set of numbers lie apart. A **standard deviation** can range from **0** to infinity. A **standard deviation of 0 means** that a list of numbers are all equal -they don't lie apart to any extent at all.

## What happens to standard deviation when you multiply by a constant?

**Standard Deviation**• **Standard deviation**. Adding or subtracting a **constant** from the scores does not change the **standard deviation**. However, **multiplying** or dividing by a **constant** means that the **standard deviation** will be **multiplied** or divided by the same **constant**.

## Can you divide standard deviation?

For **standard deviation**, it's all about how far each term is from the mean. ... In other words, **if you** add or subtract the same amount from every term in the set, the **standard deviation** doesn't change. **If you** multiply or **divide** every term in the set by the same number, the **standard deviation** will change.

## What does Standard Deviation tell you about precision or accuracy?

**Precision** is determined by a statistical method called a **standard deviation**. ... **Standard deviation** is how much, on average, measurements differ from each other. High **standard deviations indicate** low **precision**, low **standard deviations indicate** high **precision**.

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