Using it's concept, it is found that the median of the data in the dot plot is 83.5.
What is the median of a data-set?
The median of the data-set separates the bottom half from the upper half, that is, it is the 50th percentile.
The dot plot gives the number of times each measure appears, hence in this problem, the data-set is composed by:
{81, 82, 83, 83, 84, 84, 85, 85}
Even cardinality, hence the median is the mean of the two middle elements, 83 and 84, hence:
M = (83 + 84)/2 = 83.5.
The median of the data in the dot plot is 83.5.
More can be learned about the median of a data-set at https://brainly.com/question/22481790
