In this guide, I will show you how to find the interquartile range (IQR) in SPSS. I will also show you how to find the first (Q1) and third (Q3) quartiles.
Step 1: Sort your data from low to high First, you’ll simply sort your data in ascending order. 2224262829313537415364 Step 2: Identify the median, the first quartile (Q1), and the third quartile (Q3) Themedianis the value exactly in the middle of your dataset when all values are order...
After calculating the first and third quartiles, calculating the IQR is simple. We simply take the difference between the third and first quartiles (Q3 minus Q1). Once we have the IQR, we can use it to detect outliers in our data columns. Using IQR to detect outliers is called the 1.5...
Find the first, second, and third quartiles. Step 1: Order the data values from smallest to largest. The list of ascending data values is as follows: $$3.40, 3.44, 3.48, 3.50, 3.51, 3.52, 3.54, 3.54, 3.56 $$ Step 2: Find the median {eq}Q2 {/eq} of the data set. Because...
In descriptive statistics, the interquartile range tells you the spread of the middle half of your distribution.Quartiles segment any distribution that’s ordered from low to high into four equal parts. The interquartile range (IQR) contains the second and third quartiles, or the middle half ...
Use the side by side boxplots shown to answer the following: a. To the nearest integer, what is the median of variable x? b. To the nearest integer, what is the third quartile of variable y? c. Which What is the median of 26, 30, 24, 32, 32, 31, 27, and 29? a) 29 b...
In this guide, I will show you how to calculate the interquartile range (IQR) by using Microsoft Excel. I will also show you how to how to calculate the first and third quartiles for a dataset. What is the IQR? The IQR is the difference between the first (25th percentile) and third...
This finds the first quartile. To find the third quartile, type “=QUARTILE(A1:A10,3)”. Note: If your data is in a different cell range other than A1:A10, make sure you change the function to reflect that. Difference between a quarter and a quartile There’s a slight difference ...
Here’s how to interpret the output: The first value displays the minimum value in the dataset: 104.0 The second value displays the first quartile of the dataset: 156.5 The third value displays the second quartile of the dataset: 213.0 ...
Enter the formula to calculate the 3rd quartile (Q3) given below: =QUARTILE($C$5:$C$16,3) Step 3: Determine the IQR, which is the Inter-Quartile Range (it represents 50% of the given data from a range of data sets that fall into the first and third quartiles) by subtracting Q1...