When finding the mean, is it necessary to arrange the data items in order?

No

Yes

What is the difference between the median and the mode?

Is the following statement true or false?

A data set can have more than one median or no median at all.

Find the range of the following set of scores:

$10,7,2,14,13,15,11,4$10,7,2,14,13,15,11,4