Suppose we have the following 50 BUN (blood urea nitrogen) values

in mmol/L:

6.0	4.6	4.8	2.5	7.7	5.4	6.2	6.3	4.8	3.4
5.9	4.4	5.7	5.5	3.8	5.8	3.9	2.7	6.8	7.3
5.4	2.8	6.2	5.4	2.4	4.7	3.8	3.5	2.3	4.8
5.6	7.2	2.8	3.7	4.0	3.0	4.1	3.2	6.6	2.8
6.6	5.6	5.4	3.4	2.2	2.5	5.5	3.5	5.7	5.8

What kind of variable is a BUN value?

To create 6 classes for this data, what would be the class width? Give your

answer to the correct precision. [1]

Create a table that shows the frequency distribution and relative frequency

distribution of the raw data among 6 classes where the first class starts at 2.0

(you can do this by hand)