Number of blue colonies in 1 mL source water sample
Categories
Value
Category
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
25
28
30
35
36
40
41
46
48
50
55
60
68
70
80
90
100
200
500
900
999
9999
Sysmiss
Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.