Answer
Minimum = 7
Maximum = 48
Median = 19
$Q_{1}$ = 11.5
$Q_{1}$ = 35
IQR = 23.5
Work Step by Step
Arranging the values in ascending order, we have:
Minimum = 7
Maximum = 48
Median is the middle value = 19
$Q_{1}$ is the median of values below median, hence:
$Q_{1}$ = (7+16)/2 = 11.5
$Q_{3}$ is the median of values above median, hence:
$Q_{1}$ = (22+48)/2 = 35
IQR = $Q_{3} - Q_{1} = 35-11.2 = 23.5$
