#data set_2
#time(min)  temp(C)
   0        70.03
   5        68.11
  10        69.91
  15        71.38
  20        70.81
  25        68.56
  30        70.03
  35        71.49
  40        68.22
  45        69.01
  50        70.93
  55        70.25
  60        68.45
  65        70.14
  70        71.49
  75        69.69
  80        68.79
  85        70.59
  90        71.71
  95        69.91
 100        69.46
 105        71.15
 110        71.82
 115        70.81
 120        69.80