Problem
destion 2 of 10 10 Points Find the interquartile range of the data set that consists of $8,18,4,2,3,7,11,13,5,1$. A. 3 B. 8 C. 6 D. 11 Reset Selection
Solution
Step 1 ：Sort the data in ascending order: [1, 2, 3, 4, 5, 7, 8, 11, 13, 18].
Step 2 ：Find the first quartile (Q1), which is 3.25.
Step 3 ：Find the third quartile (Q3), which is 10.25.
Step 4 ：Calculate the interquartile range (IQR) by subtracting Q1 from Q3: \(10.25 - 3.25 = 7.0\).
Step 5 ：Final Answer: The interquartile range of the data set is \(\boxed{7}\).
