A student does an experiment for a science fair to study whether temperature affects the timing of a cricket’s chirps. The student keeps a cricket in an enclosed box that is heated to different temperatures each day for twelve days. The student records the cricket’s chirps by using a sound-activated microphone so that the timing of the chirps can be measured. The student records the results of the experiment in the table below. Day
1
2
3
4
5
6
7
8
9
10
11
12
Temperature (ºC)
21
22
23
24
25
26
27
28
29
30
31
32
Average time between chirps (sec)
2.5
2.6
2.2
2.3
2.0
1.8
1.9
1.8
1.4
1.2
1.5
1.1

Which generalization can be made from the data in the table?