Algebra-1

Question Analysis
This question assesses the student's understanding of how to find the median of a data set. The median is the middle value when the data is arranged in ascending order.

Key Concept Explanation
The median is a measure of central tendency that represents the middle value of a data set. If the number of data points is even, the median is the average of the two middle values.

Step-by-step Solution
1. Arrange the data in ascending order: 15, 20, 25, 30, 35, 40
2. Identify the two middle values: 25 and 30
3. Calculate the average of the two middle values:

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