Q. Mental retardation is present in about (Solved)
1. 1 percent of the population
2. 2 to 3 percent of the population
3. 10 percent of the population
4. 30 percent of the population
- b. 2 to 3 percent of the population
1. 1 percent of the population
2. 2 to 3 percent of the population
3. 10 percent of the population
4. 30 percent of the population