Median Interval 61E27D
1. The problem asks us to find the interval containing the median pre-test score from the histogram data.
2. The median is the middle value when all scores are arranged in order. Since the histogram shows the number of students per score interval, we first find the total number of students.
3. Add the number of students in each interval: $2 + 1 + 0 + 5 + 3 = 11$ students.
4. The median is the $\frac{11 + 1}{2} = 6$th score when all scores are listed in order.
5. List the scores by intervals and count students:
- 0 to 2: 2 students (scores 1st and 2nd)
- 4 to 6: 1 student (3rd score)
- 6 to 8: 0 students
- 8 to 10: 5 students (4th to 8th scores)
- 10 to 12: 3 students (9th to 11th scores)
6. The 6th score falls in the 8 to 10 interval because the first 3 scores are below it and the next 5 scores are in 8 to 10.
7. Therefore, the median pre-test score is in the interval 8 to 10.
**Final answer:** C 8 to 10