ObservationNumber,Strength_y(psi),Age_x(weeks)
1,2158.7,15.5
2,1678.15,23.75
3,2316,8
4,2061.3,17
5,2207.5,5
6,1708.3,19
7,1784.7,24
8,2575,2.5
9,2357.9,7.5
10,2277.7,11
11,21265.2,13
12,2399.55,3.75
13,1779.8,25
14,2336.75,9.75
15,1765.3,22
16,2053.5,18
17,2414.4,6
18,2200.5,12.5
19,2654.2,2
20,1753.7,21.5