Answer :
All low-incidence, severe, and multiple disabilities combined probably affect less than 1% of the population.
Low-incidence disabilities are named so due to the fact that they are observed in just around 1% of American students and are reckoned for just one-fifth of overall disabilities amongst students.
On the other hand, high-incidence disabilities, e.g. learning disabilities, are observed in around 10% of American students.
Both types of these disabilities can exist at birth or can develop at a certain stage in the developmental process owing to sickness, toxin exposure as well as injury.
Students having low-incidence disabilities are generally recognized as disabled much early in life.
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