<prompt> Etsa qeto ea lilemo tse bohareng tsa sehlopha se latelang: 15, 18, 12, 23, 18, 19nan  <response>: Instruction in English: Determine the median age of the following group: 15, 18, 12, 23, 18, 19 . Response in English: To find the median, we need to arrange the ages in ascending order: 12, 15, 18, 18, 19, 23. Since there are an even number of ages, the median is the average of the middle two numbers, which are 18 and 18. Therefore, the median age of the group is 18. . Response in Sesotho: Ho fumana mahareng, ho hlokahala hore re hlophise lilemo ka tatellano e nyolohang: 12, 15, 18, 18, 19, 23. Kaha ho na le palo e lekanang ea lilemo, mahareng ke karolelano ea lipalo tse peli tse bohareng, tse 18. le 18. Ka hona, lilemo tse mahareng tsa sehlopha ke 18. 