Questions: What is the interquartile range of the following data set?
3,8,14,19,22,29,33,37,43,49
A. 23
B. 18
C. 26
D. 19
Transcript text: Question 23 of 25
What is the interquartile range of the following data set?
\[
3,8,14,19,22,29,33,37,43,49
\]
A. 23
B. 18
C. 26
D. 19
Solution
Solution Steps
Step 1: Sort the Data Set
The sorted data set is: [3, 8, 14, 19, 22, 29, 33, 37, 43, 49].
Step 2: Calculate Q1
The first quartile (Q1) is calculated as the median of the lower half of the data set. For our data set, Q1 is 14.
Step 3: Calculate Q3
The third quartile (Q3) is calculated as the median of the upper half of the data set. For our data set, Q3 is 37.
Step 4: Compute IQR
The interquartile range (IQR) is the difference between Q3 and Q1, which is \(IQR = Q3 - Q1 = 23\).
Final Answer:
The interquartile range (IQR) of the given data set is 23.