We are given the following data set:

We are asked to determine the range. To do that we will arrange the data from smallest to greatest values, like this:

Now, the range is the difference between the smallest and greatest value, therefore:

Therefore, the range is 8
Now, the mode is the value that repeats the most. In this case, we have that the value "6" is repeated 4 times, therefore, the mode is:
