Answer:
See attachment
Step-by-step explanation:
The given data set is 25, 36, 21, 30, 20, 32, 38, 19, 36, 31, 26, 33, 27, 18, 24.
We sort the data in ascending order to get:
18,19,20,21,24,25,26,27,30,31,32,33,36,36,38
The median is the middle number after sorting , which 27
The minimum value is 18
The maximum value is 38
The first quartile is the median of 18,19,20,21,24,25,26
The third quartile is the median of 30,31,32,33,36,36,38
The interquartile range is 33-21=12
The boxplot is shown in the attachment
