A class is researching mammals’ average length of gestation (in days) and the average number of offspring in their litters. They find that, on average, horses gestate 340 days and have a litter of 1; deer mice gestate 23 days and have a litter of 3.7; and tigers gestate 104 days and have a litter of 3. The students make the matrix shown. Use this information to fill in the missing values.
| | Gestation period (days) | Average litter size |
|----------------|-------------------------|---------------------|
| Horses | 340 | 1 |
| Deer mice | 23 | 3.7 |
| Tigers | 104 | 3 |