Question

6. The first quartile (rounded to the nearest tenth if needed) of the following data set is: 15. 16. 17. 23. 11. 19. 20. 15, 18, 22, 15​

Answer 1

Explanation:

first of all arrange this data from ascending to descending order.

11,15,15,15,16,17,18,19,20,22,23

use formula

N+1/4 (N means no of observations)

11+1/4

12/4

3 rd term

therefore Q1=15