Variable Names:

1. Trial: Trial Number
2. Air: distance in yards for air-filled football
3. Helium: distance in yards for helium-filled football

The Data:

Trial	Air	Helium
1	25	25
2	23	16
3	18	25
4	16	14
5	35	23
6	15	29
7	26	25
8	24	26
9	24	22
10	28	26
11	25	12
12	19	28
13	27	28
14	25	31
15	34	22
16	26	29
17	20	23
18	22	26
19	33	35
20	29	24
21	31	31
22	27	34
23	22	39
24	29	32
25	28	14
26	29	28
27	22	30
28	31	27
29	25	33
30	20	11
31	27	26
32	26	32
33	28	30
34	32	29
35	28	30
36	25	29
37	31	29
38	28	30
39	28	26

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