Question

What is the first quartile of the data set?

10, 11, 12, 15, 17, 19, 22, 24, 29, 33, 38

A. 12
B. 19
C. 29
D. 10

Answer 1

A

Explanation:

First find the median of the data set.

The median is the middle value of the data set arranged in ascending order

10, 11, 12, 15, 17, 19, 22, 24, 29, 33, 38

The median = 19

The first quartile ( lower) is the middle value of the data to the left of the median.

10, 11, 12, 15, 17

The first quartile is 12 → A