The interquartile range (IQR), which is the difference of Q3 and Q1 is: 3.5
Recall:
- Interquartile range (IQR) = Third Quartile - First Quartile
To find the interquartile range (IQR) of the data given in the dot plot, take the following steps:
Step 1: List all the data given in the dot plot (each dot represents a data plot)
The data points are: 0, 1, 1, 3, 3, 3, 4, 5, 7
Step 2: Find the First Quartile (the middle value of the first half of the data points).
0, (1, 1,) 3, 3, 3, 4, 5, 7
The average of 1 and 1 = the middle of the first half
- First Quartile = 1 + 1 / 2 = 1
Step 3: Find the Third Quartile (the middle value of the second half of the data points).
0, 1, 1, 3, 3, 3, (4, 5,) 7
The average of 1 and 1 = the middle of the second half
- Third Quartile = 4 + 5 / 2 = 4.5
Step 4: Find the Interquartile Range (IQR).
IQR = 4.5 - 1
IQR = 3.5
Therefore, the interquartile range (IQR), which is the difference of Q3 and Q1 is: 3.5
Learn more here:
https://brainly.com/question/23448873