a) What are the 10th and 90th percentiles of the distribution of disability classifications?
b) If benefits were awarded only to applicants who are at least 80%
disabled (i.e., 80% or more disabled), what
percentage of applicants will receive benefits?
c) According to the figure legend, nearly one in five applying
veterans is granted disability benefits. At least what
degree of disability is required to be among the most disabled 20%
of veterans?
d) Let X be the degree of disability of a randomly selected
veteran. What is the probability that X is greater than
0% (i.e., that the veteran has been classified as having some
disability)? (Note that degree of disability is
treated as a discrete random variable.)
No. Of troops=1.5 million
No.of veterans=566,901
No.of veteran granted disability=one-fifth of 566,901
a)10 percentile=23.6percent of total disability granted=(23.6×566,901)÷(100×5)=26,757 (approx)
90 percentile=0.9 percent of total disability granted=(0.9×566,901)÷(100×5)=1020(approx)
b)80 percent or more disable applicants=1.5+0.9+2.2=4.6percent of the total disability granted veterans.
c)No.of people being on the most disabled 20 percent=(20×566,901)÷(100×5)=22,676
Up to 60 percent of disability granted veteran forms the 82 percent of total percentage of disability granted veteran.So to be in the category of 20%of most disabled veterans,one has to be at least 60 percent disabled or more as upto 60 percent comes under the 82 percent of total disability granted person,so some percent of 60 percent also comes in this category.
d)one-fifth of total veterans are granted,so to be classified as having some disability is 20 percent of the total veterans population.
a) What are the 10th and 90th percentiles of the distribution of disability classifications? b) If benefits were awarde...
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