Stride data

Here are experimental data relating the height H of certain students
(in inches) and the average length S of 1 stride (in inches).

H (in)	S (in)
68	28.5
66	22.4
72	25.9
71	25.9
71	25.7
69.8	28
67.3	26.8
66	25.6
74	27.4
69	27.1
65.5	23.7
69	27.1
65.5	23.7
68.3	23.6
75.6	28.5
69	26.8
76	26.4
73	26.7
65	25.4
69.5	27.1
66	27.1
63	22.9
71	29.3
67	23.7
66	26.2
67	28.3
68	24.3
64	24.5
73	28.1
71	29.1
74	25.2
74	30
75	28.2
71	28.8
68	27