Respuesta :
The mean would be best, because the data distribution is nearly symmetrical
When there is a close distribution of different numbers we have that the best measurement will be the mean.
What is mean?
Mean This is the arithmetic mean and is calculated by adding a group of numbers and dividing by the count of those numbers. For example, the average of 2, 3, 3, 5, 7, and 10 is 30 divided by 6, which is 5.
So on average it will be:
[tex](20+ 21+21+25+20+23+27+23+24+25+26+24+23+22+24)/15[/tex]
See more about mean at brainly.com/question/23910632