Table V
Serum BUN values (mg/dL) from hospital employees at Kettering Medical Center

15.9	22.5	9.1	16.8
6.4	28.6	15.2	23.7
10.3	17.0	13.8	20.5
7.4	25.0	4.1	18.4
12.7	13.6	30.9	21.3

Use the following classes: 0-5, 5-10, 10-15, 15-20, 20-25, 25-30, 30-35. What is the relative frequency of the class 10-15?

Please select the single best answer

	0.20
	0.25
	0.30
	0.35