Question

An investigative report by local newspaper concluded spread of dengue
through mosquitoes which breed in stagnant water affected 200
persons of different age group in a city. An affected person is selected
at random.
0-18
Age in
years
19-38
39-49
50-59
60 and
above
38
27
No of
persons
86
46
3
(a)
Find the probability that a person is 39 years or above.
(i) 0.625 (ii) 0.675 (iii) 0.575 (iv) none of these
(b)
Find the probability that a person is under 39 years.
(i) 0.325 (ii) 0.255 (iii) 0.352 (iv) none of these
(c)
Find the probability that a person is under 60 years but over 39 years.
(i) 0.56 (ii) 0.66
(iii) 0.65
(iv) none of these
Find the probability that a person is under 19 years.
(i) 0.18 (ii) 0.17
(iii) 0.19 (iv) none of these
(d)



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Answer 1

Answer:

soory its very difficult