The extreme values in a set of data are 5 and 19. What is true about the data set? The mean will be 12.
There is not enough data.
The range is 14.
There will be more than one mode.

The mean will be 12. To find the mean, add all values and divide by the number of values. 5+19=24, 24/2=12

The mean will be 12

To find the mean you need to add 5 and 19
That will be 24

Now divide 24 by 2
That will be 12

Extra info:

To find the mean you always add the numbers you have and divide the answer by the amount of numbers you added.

Example: 2+6+9
=17
17 divided by 3
= 5.66