Algebra-1

Question Analysis
This question tests the student's ability to find the first quartile (Q1) of a given data set. The data set 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 the sorted data, with 25% of the data below it.

Step-by-step Solution
1. Sort the data in ascending order: 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60.
2. Identify the first half of the data: ...