Question

Find the interquartile range of the following data set.
3, 9, 12, 4, 6, 40, 25, 14, 10

Answer 1

First, write the number is numerical order:
3, 4, 6, 9, 10, 12, 14, 25, 40

Minimum 3
Maximum 40
Median: 10
Q1: 6 + 4 = 10/2 = 5
Q3: 14+25 = 39/2 = 19.5


IQR: Q3 - Q1

19.5 - 5 = 14.5


Therefore, our final answer is 14.5



Hope this helps!