To determine which class shows the smallest spread in scores, you need to look at the range and interquartile range (IQR) represented by the box plots. The smallest spread will have the smallest difference between the minimum and maximum values (range) or the smallest length of the box representing the IQR.
However, without seeing the actual box plots, I can't provide a specific answer. Generally:
- The class with the most compact box (the smallest length) indicates a smaller spread of middle 50% of the data.
- The class with the narrowest whiskers (the lines extending from the box) indicates less variation in scores.
If you have the box plots available, you can follow these guidelines to identify the class with the smallest spread. If you provide more details or descriptions of the plots, I can help you analyze them further.