Considering the mean and range concepts, it is found that the correct option is:
C. On average, Athens have a higher temperature. However, temperatures in Madrid vary more.
<h3>What are the mean and the range of a data-set?</h3>
- The mean of a data-set is given by the sum of all observations divided by the number of observations.
- The range is given by the subtraction of the highest value by the lowest.
In this problem, Athens has a higher mean, while Madrid has a higher range, hence the correct option is:
C. On average, Athens have a higher temperature. However, temperatures in Madrid vary more.
More can be learned about the mean and range concepts at brainly.com/question/15796321