Algebra-1

Question Analysis
This question tests the student's ability to find the median of a given data set. The data set provided has an odd number of elements, so the median is the middle number when the data is sorted in ascending order.

Key Concept Explanation
The median is the middle value in a sorted list of numbers. For an odd number of data points, it is the value at the (n + 1) ÷ 2 position, where n is the number of data points.

Step-by-step Solution
1. Sort the data set: 3, 7, 11, 15, 19, 23, 27