Algebra-1

Question Analysis
This question tests the student's ability to find the lower quartile (Q1) of a given data set. The data must be sorted in ascending order, and Q1 is the median of the first half of the data.

Key Concept Explanation
Q1 (Lower Quartile) is the value at the 1/4 position in a sorted data set. It divides the data into four equal parts, with 25% of the data below it.

Step-by-step Solution
1. Sort the data in ascending order: 11, 12, 13, 14, 15, 16, ...