What is the median score from a 20-question assessment with the following scores: 11, 12, 13, 14, 15, 18, 19, 19, 20?

To find the median score from the provided list of scores, it is important to first understand that the median is the middle value of a data set when it is organized in ascending order. For an even number of observations, which in this case is the situation with 20 scores, the median is calculated by taking the average of the two middle scores.

In this case, the scores listed are: 11, 12, 13, 14, 15, 18, 19, 19, and 20.

However, it seems there might have been an oversight regarding the total number of scores, as only nine scores are provided. Assuming there are actually 20 scores present, they should be listed completely. Nonetheless, let’s address the median calculation based on the current set of scores.

Arranging the given scores in ascending order results in:

11, 12, 13, 14, 15, 18, 19, 19, 20.

To find the median, since we have nine scores, we take the middle score, which is the 5th score. In this ordered list, the 5th score is 15.

For a full set of 20 scores to find