# How to create a box and whisker plot

### How do you make a box and whisker plot?

To

**create a box-and-whisker plot**, we start by ordering our data (that is, putting the values) in numerical order, if they aren’t ordered already. Then we find the median of our data. The median divides the data into two halves. To divide the data into quarters, we then find the medians of these two halves.### How do you create a box plot?

To construct a

**box plot**, use a horizontal or vertical number line and a rectangular**box**. The smallest and largest data values label the endpoints of the axis. The first quartile marks one end of the**box**and the third quartile marks the other end of the**box**.### How do you calculate a box plot?

**Plot**a symbol at the median and draw a

**box**between the lower and upper quartiles.

**Calculate**the interquartile range (the difference between the upper and lower quartile) and call it IQ. The line from the lower quartile to the minimum is now drawn from the lower quartile to the smallest point that is greater than L1.

### How do you make a box and whisker plot on word?

**Create a box and whisker chart**- On the Insert tab, in the Illustrations group, click
**Chart**. - In the Insert
**Chart**dialog**box**, on the All Charts tab, click**Box**&**Whisker**.

### Can Excel make box and whisker plots?

**Excel**doesn’t offer a

**box-and-whisker**chart. Instead, you

**can**cajole a type of

**Excel**chart into

**boxes and whiskers**. Instead of showing the mean and the standard error, the

**box-and-whisker plot**shows the minimum, first quartile, median, third quartile, and maximum of a set of data. The median divides the

**box**.

### How do you find Q1 and Q3?

**Q1**is the median (the middle) of the lower half of the data, and

**Q3**is the median (the middle) of the upper half of the data. (3, 5, 7, 8, 9), | (11, 15, 16, 20, 21).

**Q1**= 7 and

**Q3**= 16. Step 5: Subtract

**Q1**from

**Q3**.

### How do you calculate Q1 Q2 and Q3?

**Quartile**

**Formula**:**Formula**for Lower quartile (**Q1**) = N + 1 multiplied by (1) divided by (4)**Formula**for Middle quartile (**Q2**) = N + 1 multiplied by (2) divided by (4)**Formula**for Upper quartile (**Q3**) = N + 1 multiplied by (3) divided by (4)**Formula**for Interquartile range =**Q3**(upper quartile) –**Q1**(lower quartile)

### What is the formula for lower quartile?

If there are (4n+3) data points, then the

**lower quartile**is 75% of the (n+1)th data value plus 25% of the (n+2)th data value; the upper**quartile**is 25% of the (3n+2)th data point plus 75% of the (3n+3)th data point.### How do you find the 1st and 3rd quartile in Excel?

**Quartile**Function**Excel**- Type your data into a single column. For example, type your data into cells A1 to A10.
- Click an empty cell somewhere on the sheet. For example, click cell B1.
- Type “=
**QUARTILE**(A1:A10,1)” and then press “Enter”. This finds the**first quartile**. To**find**the**third quartile**, type “=**QUARTILE**(A1:A10,**3**)”.

### How is quartile calculated?

The

**quartile**measures the spread of values above and below the mean by dividing the distribution into four groups. A**quartile**divides data into three points—a lower**quartile**, median, and upper**quartile**—to form four groups of the dataset.### How do you find quartile 3?

It is the median of any data set and it divides an ordered data set into upper and lower halves. The first

**quartile**Q_{1}is the median of the lower half not including the value of Q_{2}. The**third quartile**Q**is the median of the upper half not including the value of Q**_{3}_{2}.### How do you find Q1 Q2 Q3 in Excel?

The IQR is a measure of the middle dispersion of a dataset, basically the difference between

**Q1**and**Q3**. To**calculate**the IQR in Microsoft**Excel**, use the =QUARTILE function to**calculate Q1**and**Q3**, and ultimately**find**the difference between these two values.### How do you find Q1 and Q3 with even numbers?

Since there are an

**even number**of data points in the first half of the data set, the middle value is the average of the two middle values; that is,**Q1**= (3 + 4)/2 or**Q1**= 3.5.**Q3**is the middle value in the second half of the data set.### What is quartile EXC in Excel?

The

**Excel Quartile**.**Exc**function returns a requested**quartile**of a supplied range of values, based on a percentile range of 0 to 1 exclusive. If the requested**quartile**falls between two of the values in the supplied array,**Excel**interpolates between these values to calculate the**quartile**value.### How do I find the upper quartile?

The

**upper quartile**is the median of the**upper**half of a data set. This is located by dividing the data set with the median and then dividing the**upper**half that remains with the median again, this median of the**upper**half being the**upper quartile**.### What is the upper quartile range?

**Interquartile**, Semi-

**Interquartile**and Mid-

**quartile Ranges**

The median of a set of data separates the set in half. The median of the lower half of a set of data is the lower **quartile** ( LQ ) or Q1 . The median of the **upper** half of a set of data is the **upper quartile** ( UQ ) or Q3 . The **interquartile range** is 58−52 or 6 .

### How do you find the upper and lower quartile of a graph?

The

**lower quartile**is (n+1)/4 th value (n is the cumulative frequency, i.e. 157 in this case) and the**upper quartile**is the 3(n+1)/4 the value. The difference between these two is the interquartile range (IQR). In the above example, the**upper quartile**is the 118.5th value and the**lower quartile**is the 39.5th value.### How do you find the 1st and 3rd quartile of a data set?

The

**first quartile**, denoted by Q_{1}, is the median of the lower half of the**data set**. This means that about 25% of the numbers in the**data set**lie below Q_{1}and about 75% lie above Q_{1}. The**third quartile**, denoted by Q_{3}, is the median of the upper half of the**data set**.### Is the 25th percentile the same as the first quartile?

The

**first quartile**, Q1 , is the**same**as the**25**th**percentile**, and the third**quartile**, Q3 , is the**same**as the 75 th**percentile**. The median, M , is called both the second**quartile**and the 50 th**percentile**.### What is the formula for first quartile?

When the set of observations are arranged in ascending order the

**quartiles**are represented as,**First Quartile**(Q1)=((n+1)/4)^{t}^{h}Term also known as the**lower quartile**.### How do you find the 25th percentile of a data set?

**How to calculate percentile**- Rank the
**values**in the**data set**in order from smallest to largest. - Multiply k (percent) by n (total number of
**values**in the**data set**). - If the index is not a round number, round it up (or down, if it’s closer to the lower number) to the nearest whole number.
- Use your ranked
**data set**to**find**your**percentile**.

### What is the formula of percentile rank?

**Percentile rank formula**is used to give

**rank percentile**of a given list, in normal calculations we know the

**formula**is R = p/100(n+1), in excel we use the

**rank**.

### What is the formula of percentile?

Key Facts:

**Percentiles** **Percentiles** can be calculated using the **formula** n = (P/100) x N, where P = **percentile**, N = number of values in a data set (sorted from smallest to largest), and n = ordinal rank of a given value. **Percentiles** are frequently used to understand test scores and biometric measurements.