Ten students took a math quiz that consisted of 10 questions. The median score was 5.5. The modal score was 6. The teacher recorded the results of the first nine students in the following line plot. What was the average score of the first nine students whose scores were represented on the line plot? Give your answer to one decimal place.

The Mathematical Reasoning section of the GED tests your ability to solve algebraic and quantitative problems. The GED Math Test contains 46 questions. Some question types include multiple-choice, drag-and-drop, hot spot, and fill-in-the-blank. The GED Math Test is 115 minutes (1 hour and 55 minutes).