Find the frequency distribution for the data below

	Priority One Calls response time (minute)
Week	Station A	Station B
1	28	22
2	27	26
3	29	25
4	30	22
5	31	35
6	29	23
7	28	34
8	27	24
9	31	34
10	27	35
11	29	32
12	30	26
13	31	36
14	28	34
15	27	32
16	31	21
17	24	34
18	31	36
19	29	25
20	30	26
21	28	35
22	29	33
23	30	31
24	28	21
25	28	26
26	29	22
27	30	24
28	31	36
29	35	34
30	29	25
31	28	29
32	31	33
33	29	21
34	31	34
35	32	37
36	29	35
37	29	33
38	32	22
39	33	23
40	36	33
41	34	32
42	28	36
43	29	39
44	27	34
45	28	33
46	26	19
47	29	30
48	28	34
49	33	35
50	28	24
51	27	29
52	30	32
Mean	29.4	29.7