Using it's concept, it is found that the median number of monthly absences is of 13.
The <em>median </em>of a data-set is the <u>value that separates the bottom 50% of the data-set from the upper 50%</u>.
The first step is ordering the data-set, hence:
2, 10, 12, 14, 16, 18
In this problem, the cardinality is of 6, which is a even number.
- Hence, the median is the <u>mean of the 6/2 = 3rd and 4th elements</u>.
Then:
The median number of monthly absences is of 13.
To learn more about the median, you can take a look at brainly.com/question/10322579