Aspire's Library
A Place for Latest Exam wise Questions, Videos, Previous Year Papers,
Study Stuff for MCA Examinations - NIMCET
Study Stuff for MCA Examinations - NIMCET
Previous Year Question (PYQs)
The probability of shooter hitting a target is $\dfrac{3}{4}$.
Find the minimum number of shots required so that the probability of hitting the target
at least once is more than $0.99$.
Solution
Probability of missing once = $\dfrac{1}{4}$. Probability of missing all $n$ times = $(\dfrac{1}{4})^n$. Hence, probability of hitting at least once = $1 - (\dfrac{1}{4})^n > 0.99$. $\Rightarrow (\dfrac{1}{4})^n < 0.01$ $\Rightarrow n \log 4 > 2 \Rightarrow n > 1.66.$ Thus minimum $n = 3$.Online Test Series, Information About Examination,
Syllabus, Notification
and More.
View More
Online Test Series, Information About Examination,
Syllabus, Notification
and More.
View More
Ask Your Question or Put Your Review.
