Algebra-1

Step 1: Identify the Median (Q2)
There are 13 values in the data set, which is an odd number. The median (Q2) is the middle value:

- Median = 13 (7th value in the list)

Step 2: Split the Data Set into Lower and Upper Halves
- Lower half: 1, 3, 5, 7, 9, 11
- Upper half: 15, 17, 19, 21, 23, 25

Step 3: Find the Median of the Upper Half (Q3)
The upper half is:  15, 17, 19, 21, 23, 25

Since there are 6 values, the median of this subset is the average of the 3rd and 4th values:

Click "Show Answer" to reveal the answer and analysis