
1. 
EASY

Find the interquartile range:
10,11,13,16,18,20,22,26,28,33

2. 
MEDIUM

If the 3rd quartile is 52 and the interquartile range is 18, what is the value of the first quartile?

3. 
MEDIUM

Find the interquartile range:
2,5,9,13,18,21,26,26,28,48,49,55

4. 
MEDIUM

Find the interquartile range:
34,34,62,65,72,86,92,103,127,164,375

5. 
MEDIUM

The students at VGHS received these test scores on their performance test. What is the interquartile range?
25,36,47,48,48,50,50,72,75,78,81,89,90,91,100

