To find the mode of the life spans of the farm animals, we need to identify the value that appears most frequently in the given data.
The life spans of the animals are as follows:
- Chicken: 7 years
- Duck: 10 years
- Horse: 22 years
- Pig: 10 years
- Sheep: 12 years
- Cow: 10 years
- Goat: 12 years
Now, let's count the occurrences of each life span:
- 7 years: 1 occurrence (Chicken)
- 10 years: 3 occurrences (Duck, Pig, Cow)
- 12 years: 2 occurrences (Sheep, Goat)
- 22 years: 1 occurrence (Horse)
The life span that appears most frequently is 10 years, as it occurs 3 times.
Therefore, the mode of the life spans of the farm animals is 10 years.