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NDA Math Probability
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© examsnet.com
Question : 48
Total: 100
A medicine is known to be 75% effective to cure a patient. .If the medicine is given to 5 patients, what is the probability that at least one patient is cured by this medicine?
[NDA II 2016]
1
1024
243
1024
1023
1024
781
1024
Validate
Solution:
Probability of medicine to cure a patient
=
75
100
=
3
4
Probability of curing at least one patient
=
1
−
[
1
−
3
4
]
5
=
1
−
(
1
4
)
5
=
1
−
1
1024
=
1023
1024
© examsnet.com
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