Both **Variance **and **Standard Deviation** are popular terms in statistical analysis. Do you know Excel provides multiple opportunities to calculate those in your Excel workbook, even without knowing any mathematical jargon? This article focuses on diverse methods of how to calculate Variance and Standard Deviation in Excel.

## Basics of Variance and Standard Deviation

Before delving into today’s discussion, let’s have a quick overview of **Variance** and **Standard Deviation**. Instead of utilizing more general mathematical procedures like grouping numbers into quartiles, statisticians employ **Variance** to examine how distinct numerical values relate to one another within a data collection. In addition, **Variance **has the benefit of treating all values that have deviated from the mean equally, regardless of their direction. On the other hand, **Standard Deviation **provides a brief overview of how the values are distributed over a given dataset.

There are two types of Variance statisticians usually take into account, and the corresponding formula can be described as follows,

- Population variance

- Sample variance

Where,

- X= Value of each data point,
- μ= Mean value,
- N= Sample Size.

On the contrary, the formula of **Standard Deviation** is nearly identical to that of the** Variance**. All you need to do is square root each** Variance **to get the corresponding **Standard Deviation**.

## Diverse Methods to Calculate Variance and Standard Deviation in Excel

Let’s assume we have a dataset, namely “**Student Height in Grade 7**”**. **You can use any dataset suitable for you.

Here, we have used the **Microsoft Excel 365 **version; you may use any other version according to your convenience.

### 1. Calculating Variance

To calculate the **Variance** of our given dataset, we will use three possible methods, such as the arithmetic formula, **VAR,** and **VARA functions**. We will find both **Sample and Population Variance** at the same time. So let’s take a deep dive.

#### 1.1 Using Arithmetic Formula

📌 ** Steps**:

- To begin with this method, enter the following formula in cell
**C13**.

`=AVERAGE(C5:C10)`

- Press on the
**ENTER**button to see the output.

Alt Text: Using Arithmetic Formula to Calculate Variance in Excel

- Write the following formula in cell
**D5**.

`=C5-$C$13`

Here, **C5 **and **C13** cells refer to the student’s** Height** and **Average** values respectively.

- Drag the
**Fill Handle**tool to get the other values.

- To get the squared value of
**Deviation**, write the following formula in cell**E5**.

` =D5^2 `

Here,** D5 **refers to the** Deviation. **

- To get the other value, drag the
**Fill Handle**tool from**E5**to**E10**.

- Write the following formula in cell
**E11**to calculate the sum of the squared deviation value.

`=SUM(E5:E10)`

- Now, to calculate the
**Sample Variance**, enter the following formula in cell**C14**.

`=E11/(COUNTA(C5:C10)-1) `

- Similarly, write the following formula in cell
**C15**to calculate the**Population Variance**.

` =E11/COUNTA(C5:C10)`

#### 1.2 Using VAR Function

Another way to accomplish the previous task is to incorporate the **VAR function** into the formula bar. To get hands-on experience with how to do this, follow the steps that we are going to describe below.

📌 ** Steps**:

- Write the following formula in cell
**C12**.

` =VAR.S(C5:C10)`

- Similarly, enter the following formula in cell
**C13**, to calculate**Population Variance.**

` =VAR.P(C5:C10) `

#### 1.3 Applying VARA Function

Both** VARA** and **VAR** functions are the same in terms of the output they return. Follow the steps given below to get an idea about it.

📌 ** Steps**:

- Write the following formula in cell
**C12**.

` =VARA(C5:C10)`

- Enter the following formula in cell
**C13**.

` =VARPA(C5:C10)`

**Read More: **How to Calculate Quartile Deviation in Excel

### 2. Calculating Standard Deviation

As we did previously, we will now calculate the **Standard Deviation** of our given dataset in a similar fashion. However, other than the arithmetic formula that we have given in our introduction, we will use the **STDEV.P**, **STDEV.S**, **STDEVA**, and **STDEVPA** functions to accomplish the task.

#### 2.1 Utilizing Arithmetic Formula

📌 ** Steps**:

- First of all, enter the following formula in cell
**C13**.

`=AVERAGE(C5:C10)`

- Press the
**ENTER**button to see the output.

- Write the following formula in cell
**D5**.

` =C5-$C$13`

- Drag the
**Fill Handle**tool to get the other values.

- Write the following formula in cell
**E5**.

` =D5^2`

- To get the other value, drag the
**Fill Handle**tool.

- Write the following formula in cell
**E11**to calculate the sum of the squared deviation value.

` =SUM(E5:E10)`

- Now, to calculate the
**Sample Standard Deviation**, enter the following formula in cell**C14**.

` =SQRT(E11/(COUNTA(C5:C10)-1))`

**Formula Breakdown**

**COUNTA****(C5:C10) →**Here the**COUNTA function**counts the number of cells in a range that are not empty. Here, the**C5:C10**is theargument that refers to the*value1**Height.***Output → 6**

**SQRT****(E11/(COUNTA(C5:C10)-1)) →**The given**SQRT function**divides the**E11**cell value to**COUNTA(C5:C10)-1**and returns the square root output to cell**C14**.**Output → 3.98**

- Similarly, write the following formula in cell
**C15**to calculate the**Population Standard Deviation**.

` =E11/COUNTA(C5:C10)`

#### 2.2 Applying STDEV Function

Excel is always open to providing various functions to minimize your effort. Like, you can employ the **STDEV function** if you want to avoid the arithmetic formula.

📌 ** Steps**:

- Write the following formula in cell
**C12**.

` =STDEV.S(C5:C10)`

- Similarly, type the following formula to get the
**Population Standard Deviation**.

` =STDEV.P(C5:C10)`

#### 2.3 Employing STDEVPA Function

So far, so good. The last resort we are going to employ is the **S****TDEVPA function** to get the **Standard Deviation**.

📌 ** Steps**:

- First, input the following formula in cell
**C12**.

` =STDEVA(C5:C10)`

- Next,
**copy**and**paste**the following formula in cell**C13**.

` =STDEVPA(C5:C10)`

## Practice Section

We have provided a** Practice** section on the right side of each sheet, so you can practice yourself. Please make sure to do it yourself.

**Download Practice Workbook**

You can download and practice the dataset that we have used to prepare this article.

## Conclusion

In this article, we have discussed **how to calculate Variance and Standard Deviation in Excel.** As you have already understood, there are plenty of ways to accomplish this task. Further, if you have any queries, feel free to comment below, and we will get back to you soon.

## Related Articles

**<< Go Back to Deviation in Excel | Excel for Statistics**** | Learn Excel**