Question

Find the lower quartile from the set of data below. 1, 6, 7, 10, 11, 11, 14, 15, 18, 20, 21​

Answer 1

7

Explanation:

find out how many values there are in total - 11

11+1 = 12

12÷4 = 3

therefore lower quartile is the 3rd value in the list which is: 7